201521220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4111}}^1$

素因数の和:4185

約数の個数: 96

約数和(自身を含む): 607918080

約数和(自身を除く): 406396860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 645, 817, 860, 1140, 1290, 1634, 2451, 2580, 3268, 4085, 4111, 4902, 8170, 8222, 9804, 12255, 12333, 16340, 16444, 20555, 24510, 24666, 41110, 49020, 49332, 61665, 78109, 82220, 123330, 156218, 176773, 234327, 246660, 312436, 353546, 390545, 468654, 530319, 707092, 781090, 883865, 937308, 1060638, 1171635, 1562180, 1767730, 2121276, 2343270, 2651595, 3358687, 3535460, 4686540, 5303190, 6717374, 10076061, 10606380, 13434748, 16793435, 20152122, 33586870, 40304244, 50380305, 67173740, 100760610, 201521220]

約数ペア:

[(1, 201521220), (2, 100760610), (3, 67173740), (4, 50380305), (5, 40304244), (6, 33586870), (10, 20152122), (12, 16793435), (15, 13434748), (19, 10606380), (20, 10076061), (30, 6717374), (38, 5303190), (43, 4686540), (57, 3535460), (60, 3358687), (76, 2651595), (86, 2343270), (95, 2121276), (114, 1767730), (129, 1562180), (172, 1171635), (190, 1060638), (215, 937308), (228, 883865), (258, 781090), (285, 707092), (380, 530319), (430, 468654), (516, 390545), (570, 353546), (645, 312436), (817, 246660), (860, 234327), (1140, 176773), (1290, 156218), (1634, 123330), (2451, 82220), (2580, 78109), (3268, 61665), (4085, 49332), (4111, 49020), (4902, 41110), (8170, 24666), (8222, 24510), (9804, 20555), (12255, 16444), (12333, 16340)]