665331380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{279551}}^1$

素因数の和:279584

約数の個数: 48

約数和(自身を含む): 1690730496

約数和(自身を除く): 1025399116

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 279551, 559102, 1118204, 1397755, 1956857, 2795510, 3913714, 4752367, 5591020, 7827428, 9504734, 9784285, 19009468, 19568570, 23761835, 33266569, 39137140, 47523670, 66533138, 95047340, 133066276, 166332845, 332665690, 665331380]

約数ペア:

[(1, 665331380), (2, 332665690), (4, 166332845), (5, 133066276), (7, 95047340), (10, 66533138), (14, 47523670), (17, 39137140), (20, 33266569), (28, 23761835), (34, 19568570), (35, 19009468), (68, 9784285), (70, 9504734), (85, 7827428), (119, 5591020), (140, 4752367), (170, 3913714), (238, 2795510), (340, 1956857), (476, 1397755), (595, 1118204), (1190, 559102), (2380, 279551)]