393971260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{21863}}^1$

素因数の和:21942

約数の個数: 48

約数和(自身を含む): 892575936

約数和(自身を除く): 498604676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 9010, 18020, 21863, 43726, 87452, 109315, 218630, 371671, 437260, 743342, 1158739, 1486684, 1858355, 2317478, 3716710, 4634956, 5793695, 7433420, 11587390, 19698563, 23174780, 39397126, 78794252, 98492815, 196985630, 393971260]

約数ペア:

[(1, 393971260), (2, 196985630), (4, 98492815), (5, 78794252), (10, 39397126), (17, 23174780), (20, 19698563), (34, 11587390), (53, 7433420), (68, 5793695), (85, 4634956), (106, 3716710), (170, 2317478), (212, 1858355), (265, 1486684), (340, 1158739), (530, 743342), (901, 437260), (1060, 371671), (1802, 218630), (3604, 109315), (4505, 87452), (9010, 43726), (18020, 21863)]