396500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:93

約数の個数: 48

約数和(自身を含む): 947856

約数和(自身を除く): 551356

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 125, 130, 244, 250, 260, 305, 325, 500, 610, 650, 793, 1220, 1300, 1525, 1586, 1625, 3050, 3172, 3250, 3965, 6100, 6500, 7625, 7930, 15250, 15860, 19825, 30500, 39650, 79300, 99125, 198250, 396500]

約数ペア:

[(1, 396500), (2, 198250), (4, 99125), (5, 79300), (10, 39650), (13, 30500), (20, 19825), (25, 15860), (26, 15250), (50, 7930), (52, 7625), (61, 6500), (65, 6100), (100, 3965), (122, 3250), (125, 3172), (130, 3050), (244, 1625), (250, 1586), (260, 1525), (305, 1300), (325, 1220), (500, 793), (610, 650)]