15872740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 36797040

約数和(自身を除く): 20924300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1489, 2132, 2665, 2978, 5330, 5956, 7445, 10660, 14890, 19357, 29780, 38714, 61049, 77428, 96785, 122098, 193570, 244196, 305245, 387140, 610490, 793637, 1220980, 1587274, 3174548, 3968185, 7936370, 15872740]

約数ペア:

[(1, 15872740), (2, 7936370), (4, 3968185), (5, 3174548), (10, 1587274), (13, 1220980), (20, 793637), (26, 610490), (41, 387140), (52, 305245), (65, 244196), (82, 193570), (130, 122098), (164, 96785), (205, 77428), (260, 61049), (410, 38714), (533, 29780), (820, 19357), (1066, 14890), (1489, 10660), (2132, 7445), (2665, 5956), (2978, 5330)]