1663194620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{6271}}^1$

素因数の和:6518

約数の個数: 48

約数和(自身を含む): 3556224000

約数和(自身を除く): 1893029380

約数列:

[1, 2, 4, 5, 10, 20, 89, 149, 178, 298, 356, 445, 596, 745, 890, 1490, 1780, 2980, 6271, 12542, 13261, 25084, 26522, 31355, 53044, 62710, 66305, 125420, 132610, 265220, 558119, 934379, 1116238, 1868758, 2232476, 2790595, 3737516, 4671895, 5581190, 9343790, 11162380, 18687580, 83159731, 166319462, 332638924, 415798655, 831597310, 1663194620]

約数ペア:

[(1, 1663194620), (2, 831597310), (4, 415798655), (5, 332638924), (10, 166319462), (20, 83159731), (89, 18687580), (149, 11162380), (178, 9343790), (298, 5581190), (356, 4671895), (445, 3737516), (596, 2790595), (745, 2232476), (890, 1868758), (1490, 1116238), (1780, 934379), (2980, 558119), (6271, 265220), (12542, 132610), (13261, 125420), (25084, 66305), (26522, 62710), (31355, 53044)]