20520799494

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1\times {\mathrm{3319}}^1$

素因数の和:5925

約数の個数: 64

約数和(自身を含む): 45656002560

約数和(自身を除く): 25135203066

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 2557, 3319, 5114, 6638, 7671, 9957, 15342, 19914, 33241, 43147, 66482, 79267, 86294, 99723, 102889, 129441, 158534, 199446, 205778, 237801, 258882, 308667, 475602, 617334, 1030471, 1337557, 2060942, 2675114, 3091413, 4012671, 6182826, 8025342, 8486683, 16973366, 25460049, 50920098, 110326879, 220653758, 263087173, 330980637, 526174346, 661961274, 789261519, 1578523038, 3420133249, 6840266498, 10260399747, 20520799494]

約数ペア:

[(1, 20520799494), (2, 10260399747), (3, 6840266498), (6, 3420133249), (13, 1578523038), (26, 789261519), (31, 661961274), (39, 526174346), (62, 330980637), (78, 263087173), (93, 220653758), (186, 110326879), (403, 50920098), (806, 25460049), (1209, 16973366), (2418, 8486683), (2557, 8025342), (3319, 6182826), (5114, 4012671), (6638, 3091413), (7671, 2675114), (9957, 2060942), (15342, 1337557), (19914, 1030471), (33241, 617334), (43147, 475602), (66482, 308667), (79267, 258882), (86294, 237801), (99723, 205778), (102889, 199446), (129441, 158534)]