668864990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1583}}^1$

素因数の和:1697

約数の個数: 64

約数和(自身を含む): 1313832960

約数和(自身を除く): 644967970

約数列:

[1, 2, 5, 10, 29, 31, 47, 58, 62, 94, 145, 155, 235, 290, 310, 470, 899, 1363, 1457, 1583, 1798, 2726, 2914, 3166, 4495, 6815, 7285, 7915, 8990, 13630, 14570, 15830, 42253, 45907, 49073, 74401, 84506, 91814, 98146, 148802, 211265, 229535, 245365, 372005, 422530, 459070, 490730, 744010, 1423117, 2157629, 2306431, 2846234, 4315258, 4612862, 7115585, 10788145, 11532155, 14231170, 21576290, 23064310, 66886499, 133772998, 334432495, 668864990]

約数ペア:

[(1, 668864990), (2, 334432495), (5, 133772998), (10, 66886499), (29, 23064310), (31, 21576290), (47, 14231170), (58, 11532155), (62, 10788145), (94, 7115585), (145, 4612862), (155, 4315258), (235, 2846234), (290, 2306431), (310, 2157629), (470, 1423117), (899, 744010), (1363, 490730), (1457, 459070), (1583, 422530), (1798, 372005), (2726, 245365), (2914, 229535), (3166, 211265), (4495, 148802), (6815, 98146), (7285, 91814), (7915, 84506), (8990, 74401), (13630, 49073), (14570, 45907), (15830, 42253)]