78441480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:221

約数の個数: 256

約数和(自身を含む): 291110400

約数和(自身を除く): 212668920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 37, 39, 40, 45, 52, 54, 60, 65, 72, 74, 78, 90, 104, 108, 111, 117, 120, 130, 135, 148, 151, 156, 180, 185, 195, 216, 222, 234, 260, 270, 296, 302, 312, 333, 351, 360, 370, 390, 444, 453, 468, 481, 520, 540, 555, 585, 604, 666, 702, 740, 755, 780, 888, 906, 936, 962, 999, 1080, 1110, 1170, 1208, 1332, 1359, 1404, 1443, 1480, 1510, 1560, 1665, 1755, 1812, 1924, 1963, 1998, 2220, 2265, 2340, 2405, 2664, 2718, 2808, 2886, 3020, 3330, 3510, 3624, 3848, 3926, 3996, 4077, 4329, 4440, 4530, 4680, 4810, 4995, 5436, 5587, 5772, 5889, 6040, 6660, 6795, 7020, 7215, 7852, 7992, 8154, 8658, 9060, 9620, 9815, 9990, 10872, 11174, 11544, 11778, 12987, 13320, 13590, 14040, 14430, 15704, 16308, 16761, 17316, 17667, 18120, 19240, 19630, 19980, 20385, 21645, 22348, 23556, 25974, 27180, 27935, 28860, 29445, 32616, 33522, 34632, 35334, 39260, 39960, 40770, 43290, 44696, 47112, 50283, 51948, 53001, 54360, 55870, 57720, 58890, 64935, 67044, 70668, 72631, 78520, 81540, 83805, 86580, 88335, 100566, 103896, 106002, 111740, 117780, 129870, 134088, 141336, 145262, 150849, 163080, 167610, 173160, 176670, 201132, 212004, 217893, 223480, 235560, 251415, 259740, 265005, 290524, 301698, 335220, 353340, 363155, 402264, 424008, 435786, 502830, 519480, 530010, 581048, 603396, 653679, 670440, 706680, 726310, 754245, 871572, 1005660, 1060020, 1089465, 1206792, 1307358, 1452620, 1508490, 1743144, 1961037, 2011320, 2120040, 2178930, 2614716, 2905240, 3016980, 3268395, 3922074, 4357860, 5229432, 6033960, 6536790, 7844148, 8715720, 9805185, 13073580, 15688296, 19610370, 26147160, 39220740, 78441480]

約数ペア:

[(1, 78441480), (2, 39220740), (3, 26147160), (4, 19610370), (5, 15688296), (6, 13073580), (8, 9805185), (9, 8715720), (10, 7844148), (12, 6536790), (13, 6033960), (15, 5229432), (18, 4357860), (20, 3922074), (24, 3268395), (26, 3016980), (27, 2905240), (30, 2614716), (36, 2178930), (37, 2120040), (39, 2011320), (40, 1961037), (45, 1743144), (52, 1508490), (54, 1452620), (60, 1307358), (65, 1206792), (72, 1089465), (74, 1060020), (78, 1005660), (90, 871572), (104, 754245), (108, 726310), (111, 706680), (117, 670440), (120, 653679), (130, 603396), (135, 581048), (148, 530010), (151, 519480), (156, 502830), (180, 435786), (185, 424008), (195, 402264), (216, 363155), (222, 353340), (234, 335220), (260, 301698), (270, 290524), (296, 265005), (302, 259740), (312, 251415), (333, 235560), (351, 223480), (360, 217893), (370, 212004), (390, 201132), (444, 176670), (453, 173160), (468, 167610), (481, 163080), (520, 150849), (540, 145262), (555, 141336), (585, 134088), (604, 129870), (666, 117780), (702, 111740), (740, 106002), (755, 103896), (780, 100566), (888, 88335), (906, 86580), (936, 83805), (962, 81540), (999, 78520), (1080, 72631), (1110, 70668), (1170, 67044), (1208, 64935), (1332, 58890), (1359, 57720), (1404, 55870), (1443, 54360), (1480, 53001), (1510, 51948), (1560, 50283), (1665, 47112), (1755, 44696), (1812, 43290), (1924, 40770), (1963, 39960), (1998, 39260), (2220, 35334), (2265, 34632), (2340, 33522), (2405, 32616), (2664, 29445), (2718, 28860), (2808, 27935), (2886, 27180), (3020, 25974), (3330, 23556), (3510, 22348), (3624, 21645), (3848, 20385), (3926, 19980), (3996, 19630), (4077, 19240), (4329, 18120), (4440, 17667), (4530, 17316), (4680, 16761), (4810, 16308), (4995, 15704), (5436, 14430), (5587, 14040), (5772, 13590), (5889, 13320), (6040, 12987), (6660, 11778), (6795, 11544), (7020, 11174), (7215, 10872), (7852, 9990), (7992, 9815), (8154, 9620), (8658, 9060)]