28218990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1657

約数の個数: 64

約数和(自身を含む): 73635840

約数和(自身を除く): 45416850

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 31, 38, 57, 62, 93, 95, 114, 155, 186, 190, 285, 310, 465, 570, 589, 930, 1178, 1597, 1767, 2945, 3194, 3534, 4791, 5890, 7985, 8835, 9582, 15970, 17670, 23955, 30343, 47910, 49507, 60686, 91029, 99014, 148521, 151715, 182058, 247535, 297042, 303430, 455145, 495070, 742605, 910290, 940633, 1485210, 1881266, 2821899, 4703165, 5643798, 9406330, 14109495, 28218990]

約数ペア:

[(1, 28218990), (2, 14109495), (3, 9406330), (5, 5643798), (6, 4703165), (10, 2821899), (15, 1881266), (19, 1485210), (30, 940633), (31, 910290), (38, 742605), (57, 495070), (62, 455145), (93, 303430), (95, 297042), (114, 247535), (155, 182058), (186, 151715), (190, 148521), (285, 99014), (310, 91029), (465, 60686), (570, 49507), (589, 47910), (930, 30343), (1178, 23955), (1597, 17670), (1767, 15970), (2945, 9582), (3194, 8835), (3534, 7985), (4791, 5890)]