28156830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 78769152

約数和(自身を除く): 50612322

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 43, 46, 65, 69, 73, 78, 86, 115, 129, 130, 138, 146, 195, 215, 219, 230, 258, 299, 345, 365, 390, 430, 438, 559, 598, 645, 690, 730, 897, 949, 989, 1095, 1118, 1290, 1495, 1677, 1679, 1794, 1898, 1978, 2190, 2795, 2847, 2967, 2990, 3139, 3354, 3358, 4485, 4745, 4945, 5037, 5590, 5694, 5934, 6278, 8385, 8395, 8970, 9417, 9490, 9890, 10074, 12857, 14235, 14835, 15695, 16770, 16790, 18834, 21827, 25185, 25714, 28470, 29670, 31390, 38571, 40807, 43654, 47085, 50370, 64285, 65481, 72197, 77142, 81614, 94170, 109135, 122421, 128570, 130962, 144394, 192855, 204035, 216591, 218270, 244842, 327405, 360985, 385710, 408070, 433182, 612105, 654810, 721970, 938561, 1082955, 1224210, 1877122, 2165910, 2815683, 4692805, 5631366, 9385610, 14078415, 28156830]

約数ペア:

[(1, 28156830), (2, 14078415), (3, 9385610), (5, 5631366), (6, 4692805), (10, 2815683), (13, 2165910), (15, 1877122), (23, 1224210), (26, 1082955), (30, 938561), (39, 721970), (43, 654810), (46, 612105), (65, 433182), (69, 408070), (73, 385710), (78, 360985), (86, 327405), (115, 244842), (129, 218270), (130, 216591), (138, 204035), (146, 192855), (195, 144394), (215, 130962), (219, 128570), (230, 122421), (258, 109135), (299, 94170), (345, 81614), (365, 77142), (390, 72197), (430, 65481), (438, 64285), (559, 50370), (598, 47085), (645, 43654), (690, 40807), (730, 38571), (897, 31390), (949, 29670), (989, 28470), (1095, 25714), (1118, 25185), (1290, 21827), (1495, 18834), (1677, 16790), (1679, 16770), (1794, 15695), (1898, 14835), (1978, 14235), (2190, 12857), (2795, 10074), (2847, 9890), (2967, 9490), (2990, 9417), (3139, 8970), (3354, 8395), (3358, 8385), (4485, 6278), (4745, 5934), (4945, 5694), (5037, 5590)]