18440970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 28007670

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 79, 93, 155, 158, 186, 237, 251, 310, 395, 465, 474, 502, 753, 790, 930, 1185, 1255, 1506, 2370, 2449, 2510, 3765, 4898, 7347, 7530, 7781, 12245, 14694, 15562, 19829, 23343, 24490, 36735, 38905, 39658, 46686, 59487, 73470, 77810, 99145, 116715, 118974, 198290, 233430, 297435, 594870, 614699, 1229398, 1844097, 3073495, 3688194, 6146990, 9220485, 18440970]

約数ペア:

[(1, 18440970), (2, 9220485), (3, 6146990), (5, 3688194), (6, 3073495), (10, 1844097), (15, 1229398), (30, 614699), (31, 594870), (62, 297435), (79, 233430), (93, 198290), (155, 118974), (158, 116715), (186, 99145), (237, 77810), (251, 73470), (310, 59487), (395, 46686), (465, 39658), (474, 38905), (502, 36735), (753, 24490), (790, 23343), (930, 19829), (1185, 15562), (1255, 14694), (1506, 12245), (2370, 7781), (2449, 7530), (2510, 7347), (3765, 4898)]