28502500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{877}}^1$

素因数の和:914

約数の個数: 60

約数和(自身を含む): 67200364

約数和(自身を除く): 38697864

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 877, 1250, 1300, 1625, 1754, 2500, 3250, 3508, 4385, 6500, 8125, 8770, 11401, 16250, 17540, 21925, 22802, 32500, 43850, 45604, 57005, 87700, 109625, 114010, 219250, 228020, 285025, 438500, 548125, 570050, 1096250, 1140100, 1425125, 2192500, 2850250, 5700500, 7125625, 14251250, 28502500]

約数ペア:

[(1, 28502500), (2, 14251250), (4, 7125625), (5, 5700500), (10, 2850250), (13, 2192500), (20, 1425125), (25, 1140100), (26, 1096250), (50, 570050), (52, 548125), (65, 438500), (100, 285025), (125, 228020), (130, 219250), (250, 114010), (260, 109625), (325, 87700), (500, 57005), (625, 45604), (650, 43850), (877, 32500), (1250, 22802), (1300, 21925), (1625, 17540), (1754, 16250), (2500, 11401), (3250, 8770), (3508, 8125), (4385, 6500)]