57638920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 145981440

約数和(自身を除く): 88342520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 43, 46, 47, 62, 86, 92, 94, 115, 124, 155, 172, 184, 188, 215, 230, 235, 248, 310, 344, 376, 430, 460, 470, 620, 713, 860, 920, 940, 989, 1081, 1240, 1333, 1426, 1457, 1720, 1880, 1978, 2021, 2162, 2666, 2852, 2914, 3565, 3956, 4042, 4324, 4945, 5332, 5405, 5704, 5828, 6665, 7130, 7285, 7912, 8084, 8648, 9890, 10105, 10664, 10810, 11656, 13330, 14260, 14570, 16168, 19780, 20210, 21620, 26660, 28520, 29140, 30659, 33511, 39560, 40420, 43240, 46483, 53320, 58280, 61318, 62651, 67022, 80840, 92966, 122636, 125302, 134044, 153295, 167555, 185932, 232415, 245272, 250604, 268088, 306590, 313255, 335110, 371864, 464830, 501208, 613180, 626510, 670220, 929660, 1226360, 1253020, 1340440, 1440973, 1859320, 2506040, 2881946, 5763892, 7204865, 11527784, 14409730, 28819460, 57638920]

約数ペア:

[(1, 57638920), (2, 28819460), (4, 14409730), (5, 11527784), (8, 7204865), (10, 5763892), (20, 2881946), (23, 2506040), (31, 1859320), (40, 1440973), (43, 1340440), (46, 1253020), (47, 1226360), (62, 929660), (86, 670220), (92, 626510), (94, 613180), (115, 501208), (124, 464830), (155, 371864), (172, 335110), (184, 313255), (188, 306590), (215, 268088), (230, 250604), (235, 245272), (248, 232415), (310, 185932), (344, 167555), (376, 153295), (430, 134044), (460, 125302), (470, 122636), (620, 92966), (713, 80840), (860, 67022), (920, 62651), (940, 61318), (989, 58280), (1081, 53320), (1240, 46483), (1333, 43240), (1426, 40420), (1457, 39560), (1720, 33511), (1880, 30659), (1978, 29140), (2021, 28520), (2162, 26660), (2666, 21620), (2852, 20210), (2914, 19780), (3565, 16168), (3956, 14570), (4042, 14260), (4324, 13330), (4945, 11656), (5332, 10810), (5405, 10664), (5704, 10105), (5828, 9890), (6665, 8648), (7130, 8084), (7285, 7912)]