287485250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1669}}^1$

素因数の和:1752

約数の個数: 64

約数和(自身を含む): 590859360

約数和(自身を除く): 303374110

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 125, 130, 250, 265, 325, 530, 650, 689, 1325, 1378, 1625, 1669, 2650, 3250, 3338, 3445, 6625, 6890, 8345, 13250, 16690, 17225, 21697, 34450, 41725, 43394, 83450, 86125, 88457, 108485, 172250, 176914, 208625, 216970, 417250, 442285, 542425, 884570, 1084850, 1149941, 2211425, 2299882, 2712125, 4422850, 5424250, 5749705, 11057125, 11499410, 22114250, 28748525, 57497050, 143742625, 287485250]

約数ペア:

[(1, 287485250), (2, 143742625), (5, 57497050), (10, 28748525), (13, 22114250), (25, 11499410), (26, 11057125), (50, 5749705), (53, 5424250), (65, 4422850), (106, 2712125), (125, 2299882), (130, 2211425), (250, 1149941), (265, 1084850), (325, 884570), (530, 542425), (650, 442285), (689, 417250), (1325, 216970), (1378, 208625), (1625, 176914), (1669, 172250), (2650, 108485), (3250, 88457), (3338, 86125), (3445, 83450), (6625, 43394), (6890, 41725), (8345, 34450), (13250, 21697), (16690, 17225)]