20897640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58049}}^1$

素因数の和:58066

約数の個数: 48

約数和(自身を含む): 67918500

約数和(自身を除く): 47020860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58049, 116098, 174147, 232196, 290245, 348294, 464392, 522441, 580490, 696588, 870735, 1044882, 1160980, 1393176, 1741470, 2089764, 2321960, 2612205, 3482940, 4179528, 5224410, 6965880, 10448820, 20897640]

約数ペア:

[(1, 20897640), (2, 10448820), (3, 6965880), (4, 5224410), (5, 4179528), (6, 3482940), (8, 2612205), (9, 2321960), (10, 2089764), (12, 1741470), (15, 1393176), (18, 1160980), (20, 1044882), (24, 870735), (30, 696588), (36, 580490), (40, 522441), (45, 464392), (60, 348294), (72, 290245), (90, 232196), (120, 174147), (180, 116098), (360, 58049)]