307002020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1489}}^1$

素因数の和:1585

約数の個数: 72

約数和(自身を含む): 710032680

約数和(自身を除く): 403030660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 169, 244, 260, 305, 338, 610, 676, 793, 845, 1220, 1489, 1586, 1690, 2978, 3172, 3380, 3965, 5956, 7445, 7930, 10309, 14890, 15860, 19357, 20618, 29780, 38714, 41236, 51545, 77428, 90829, 96785, 103090, 181658, 193570, 206180, 251641, 363316, 387140, 454145, 503282, 908290, 1006564, 1180777, 1258205, 1816580, 2361554, 2516410, 4723108, 5032820, 5903885, 11807770, 15350101, 23615540, 30700202, 61400404, 76750505, 153501010, 307002020]

約数ペア:

[(1, 307002020), (2, 153501010), (4, 76750505), (5, 61400404), (10, 30700202), (13, 23615540), (20, 15350101), (26, 11807770), (52, 5903885), (61, 5032820), (65, 4723108), (122, 2516410), (130, 2361554), (169, 1816580), (244, 1258205), (260, 1180777), (305, 1006564), (338, 908290), (610, 503282), (676, 454145), (793, 387140), (845, 363316), (1220, 251641), (1489, 206180), (1586, 193570), (1690, 181658), (2978, 103090), (3172, 96785), (3380, 90829), (3965, 77428), (5956, 51545), (7445, 41236), (7930, 38714), (10309, 29780), (14890, 20618), (15860, 19357)]