20129460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 61471872

約数和(自身を除く): 41342412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 131, 156, 195, 197, 260, 262, 390, 393, 394, 524, 591, 655, 780, 786, 788, 985, 1182, 1310, 1572, 1703, 1965, 1970, 2364, 2561, 2620, 2955, 3406, 3930, 3940, 5109, 5122, 5910, 6812, 7683, 7860, 8515, 10218, 10244, 11820, 12805, 15366, 17030, 20436, 25545, 25610, 25807, 30732, 34060, 38415, 51090, 51220, 51614, 76830, 77421, 102180, 103228, 129035, 153660, 154842, 258070, 309684, 335491, 387105, 516140, 670982, 774210, 1006473, 1341964, 1548420, 1677455, 2012946, 3354910, 4025892, 5032365, 6709820, 10064730, 20129460]

約数ペア:

[(1, 20129460), (2, 10064730), (3, 6709820), (4, 5032365), (5, 4025892), (6, 3354910), (10, 2012946), (12, 1677455), (13, 1548420), (15, 1341964), (20, 1006473), (26, 774210), (30, 670982), (39, 516140), (52, 387105), (60, 335491), (65, 309684), (78, 258070), (130, 154842), (131, 153660), (156, 129035), (195, 103228), (197, 102180), (260, 77421), (262, 76830), (390, 51614), (393, 51220), (394, 51090), (524, 38415), (591, 34060), (655, 30732), (780, 25807), (786, 25610), (788, 25545), (985, 20436), (1182, 17030), (1310, 15366), (1572, 12805), (1703, 11820), (1965, 10244), (1970, 10218), (2364, 8515), (2561, 7860), (2620, 7683), (2955, 6812), (3406, 5910), (3930, 5122), (3940, 5109)]