349508720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1021}}^1$

素因数の和:1434

約数の個数: 80

約数和(自身を含む): 889630560

約数和(自身を除く): 540121840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 389, 440, 778, 880, 1021, 1556, 1945, 2042, 3112, 3890, 4084, 4279, 5105, 6224, 7780, 8168, 8558, 10210, 11231, 15560, 16336, 17116, 20420, 21395, 22462, 31120, 34232, 40840, 42790, 44924, 56155, 68464, 81680, 85580, 89848, 112310, 171160, 179696, 224620, 342320, 397169, 449240, 794338, 898480, 1588676, 1985845, 3177352, 3971690, 4368859, 6354704, 7943380, 8737718, 15886760, 17475436, 21844295, 31773520, 34950872, 43688590, 69901744, 87377180, 174754360, 349508720]

約数ペア:

[(1, 349508720), (2, 174754360), (4, 87377180), (5, 69901744), (8, 43688590), (10, 34950872), (11, 31773520), (16, 21844295), (20, 17475436), (22, 15886760), (40, 8737718), (44, 7943380), (55, 6354704), (80, 4368859), (88, 3971690), (110, 3177352), (176, 1985845), (220, 1588676), (389, 898480), (440, 794338), (778, 449240), (880, 397169), (1021, 342320), (1556, 224620), (1945, 179696), (2042, 171160), (3112, 112310), (3890, 89848), (4084, 85580), (4279, 81680), (5105, 68464), (6224, 56155), (7780, 44924), (8168, 42790), (8558, 40840), (10210, 34232), (11231, 31120), (15560, 22462), (16336, 21395), (17116, 20420)]