520160420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{32797}}^1$

素因数の和:32880

約数の個数: 48

約数和(自身を含む): 1195683888

約数和(自身を除く): 675523468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 15860, 32797, 65594, 131188, 163985, 327970, 426361, 655940, 852722, 1705444, 2000617, 2131805, 4001234, 4263610, 8002468, 8527220, 10003085, 20006170, 26008021, 40012340, 52016042, 104032084, 130040105, 260080210, 520160420]

約数ペア:

[(1, 520160420), (2, 260080210), (4, 130040105), (5, 104032084), (10, 52016042), (13, 40012340), (20, 26008021), (26, 20006170), (52, 10003085), (61, 8527220), (65, 8002468), (122, 4263610), (130, 4001234), (244, 2131805), (260, 2000617), (305, 1705444), (610, 852722), (793, 655940), (1220, 426361), (1586, 327970), (3172, 163985), (3965, 131188), (7930, 65594), (15860, 32797)]