19855680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 224

約数和(自身を含む): 71347584

約数和(自身を除く): 51491904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 37, 39, 40, 43, 48, 52, 60, 64, 65, 74, 78, 80, 86, 96, 104, 111, 120, 129, 130, 148, 156, 160, 172, 185, 192, 195, 208, 215, 222, 240, 258, 260, 296, 312, 320, 344, 370, 390, 416, 430, 444, 480, 481, 516, 520, 555, 559, 592, 624, 645, 688, 740, 780, 832, 860, 888, 960, 962, 1032, 1040, 1110, 1118, 1184, 1248, 1290, 1376, 1443, 1480, 1560, 1591, 1677, 1720, 1776, 1924, 2064, 2080, 2220, 2236, 2368, 2405, 2496, 2580, 2752, 2795, 2886, 2960, 3120, 3182, 3354, 3440, 3552, 3848, 4128, 4160, 4440, 4472, 4773, 4810, 5160, 5590, 5772, 5920, 6240, 6364, 6708, 6880, 7104, 7215, 7696, 7955, 8256, 8385, 8880, 8944, 9546, 9620, 10320, 11180, 11544, 11840, 12480, 12728, 13416, 13760, 14430, 15392, 15910, 16770, 17760, 17888, 19092, 19240, 20640, 20683, 22360, 23088, 23865, 25456, 26832, 28860, 30784, 31820, 33540, 35520, 35776, 38184, 38480, 41280, 41366, 44720, 46176, 47730, 50912, 53664, 57720, 62049, 63640, 67080, 76368, 76960, 82732, 89440, 92352, 95460, 101824, 103415, 107328, 115440, 124098, 127280, 134160, 152736, 153920, 165464, 178880, 190920, 206830, 230880, 248196, 254560, 268320, 305472, 310245, 330928, 381840, 413660, 461760, 496392, 509120, 536640, 620490, 661856, 763680, 827320, 992784, 1240980, 1323712, 1527360, 1654640, 1985568, 2481960, 3309280, 3971136, 4963920, 6618560, 9927840, 19855680]

約数ペア:

[(1, 19855680), (2, 9927840), (3, 6618560), (4, 4963920), (5, 3971136), (6, 3309280), (8, 2481960), (10, 1985568), (12, 1654640), (13, 1527360), (15, 1323712), (16, 1240980), (20, 992784), (24, 827320), (26, 763680), (30, 661856), (32, 620490), (37, 536640), (39, 509120), (40, 496392), (43, 461760), (48, 413660), (52, 381840), (60, 330928), (64, 310245), (65, 305472), (74, 268320), (78, 254560), (80, 248196), (86, 230880), (96, 206830), (104, 190920), (111, 178880), (120, 165464), (129, 153920), (130, 152736), (148, 134160), (156, 127280), (160, 124098), (172, 115440), (185, 107328), (192, 103415), (195, 101824), (208, 95460), (215, 92352), (222, 89440), (240, 82732), (258, 76960), (260, 76368), (296, 67080), (312, 63640), (320, 62049), (344, 57720), (370, 53664), (390, 50912), (416, 47730), (430, 46176), (444, 44720), (480, 41366), (481, 41280), (516, 38480), (520, 38184), (555, 35776), (559, 35520), (592, 33540), (624, 31820), (645, 30784), (688, 28860), (740, 26832), (780, 25456), (832, 23865), (860, 23088), (888, 22360), (960, 20683), (962, 20640), (1032, 19240), (1040, 19092), (1110, 17888), (1118, 17760), (1184, 16770), (1248, 15910), (1290, 15392), (1376, 14430), (1443, 13760), (1480, 13416), (1560, 12728), (1591, 12480), (1677, 11840), (1720, 11544), (1776, 11180), (1924, 10320), (2064, 9620), (2080, 9546), (2220, 8944), (2236, 8880), (2368, 8385), (2405, 8256), (2496, 7955), (2580, 7696), (2752, 7215), (2795, 7104), (2886, 6880), (2960, 6708), (3120, 6364), (3182, 6240), (3354, 5920), (3440, 5772), (3552, 5590), (3848, 5160), (4128, 4810), (4160, 4773), (4440, 4472)]