81382320

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 200

約数和(自身を含む): 297979440

約数和(自身を除く): 216597120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 570, 648, 661, 684, 720, 760, 810, 855, 912, 1026, 1080, 1140, 1296, 1322, 1368, 1520, 1539, 1620, 1710, 1983, 2052, 2160, 2280, 2565, 2644, 2736, 3078, 3240, 3305, 3420, 3966, 4104, 4560, 5130, 5288, 5949, 6156, 6480, 6610, 6840, 7695, 7932, 8208, 9915, 10260, 10576, 11898, 12312, 12559, 13220, 13680, 15390, 15864, 17847, 19830, 20520, 23796, 24624, 25118, 26440, 29745, 30780, 31728, 35694, 37677, 39660, 41040, 47592, 50236, 52880, 53541, 59490, 61560, 62795, 71388, 75354, 79320, 89235, 95184, 100472, 107082, 113031, 118980, 123120, 125590, 142776, 150708, 158640, 178470, 188385, 200944, 214164, 226062, 237960, 251180, 267705, 285552, 301416, 339093, 356940, 376770, 428328, 452124, 475920, 502360, 535410, 565155, 602832, 678186, 713880, 753540, 856656, 904248, 1004720, 1017279, 1070820, 1130310, 1356372, 1427760, 1507080, 1695465, 1808496, 2034558, 2141640, 2260620, 2712744, 3014160, 3390930, 4069116, 4283280, 4521240, 5086395, 5425488, 6781860, 8138232, 9042480, 10172790, 13563720, 16276464, 20345580, 27127440, 40691160, 81382320]

約数ペア:

[(1, 81382320), (2, 40691160), (3, 27127440), (4, 20345580), (5, 16276464), (6, 13563720), (8, 10172790), (9, 9042480), (10, 8138232), (12, 6781860), (15, 5425488), (16, 5086395), (18, 4521240), (19, 4283280), (20, 4069116), (24, 3390930), (27, 3014160), (30, 2712744), (36, 2260620), (38, 2141640), (40, 2034558), (45, 1808496), (48, 1695465), (54, 1507080), (57, 1427760), (60, 1356372), (72, 1130310), (76, 1070820), (80, 1017279), (81, 1004720), (90, 904248), (95, 856656), (108, 753540), (114, 713880), (120, 678186), (135, 602832), (144, 565155), (152, 535410), (162, 502360), (171, 475920), (180, 452124), (190, 428328), (216, 376770), (228, 356940), (240, 339093), (270, 301416), (285, 285552), (304, 267705), (324, 251180), (342, 237960), (360, 226062), (380, 214164), (405, 200944), (432, 188385), (456, 178470), (513, 158640), (540, 150708), (570, 142776), (648, 125590), (661, 123120), (684, 118980), (720, 113031), (760, 107082), (810, 100472), (855, 95184), (912, 89235), (1026, 79320), (1080, 75354), (1140, 71388), (1296, 62795), (1322, 61560), (1368, 59490), (1520, 53541), (1539, 52880), (1620, 50236), (1710, 47592), (1983, 41040), (2052, 39660), (2160, 37677), (2280, 35694), (2565, 31728), (2644, 30780), (2736, 29745), (3078, 26440), (3240, 25118), (3305, 24624), (3420, 23796), (3966, 20520), (4104, 19830), (4560, 17847), (5130, 15864), (5288, 15390), (5949, 13680), (6156, 13220), (6480, 12559), (6610, 12312), (6840, 11898), (7695, 10576), (7932, 10260), (8208, 9915)]