20756640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:622

約数の個数: 96

約数和(自身を含む): 66298176

約数和(自身を除く): 45541536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 83, 96, 120, 160, 166, 240, 249, 332, 415, 480, 498, 521, 664, 830, 996, 1042, 1245, 1328, 1563, 1660, 1992, 2084, 2490, 2605, 2656, 3126, 3320, 3984, 4168, 4980, 5210, 6252, 6640, 7815, 7968, 8336, 9960, 10420, 12504, 13280, 15630, 16672, 19920, 20840, 25008, 31260, 39840, 41680, 43243, 50016, 62520, 83360, 86486, 125040, 129729, 172972, 216215, 250080, 259458, 345944, 432430, 518916, 648645, 691888, 864860, 1037832, 1297290, 1383776, 1729720, 2075664, 2594580, 3459440, 4151328, 5189160, 6918880, 10378320, 20756640]

約数ペア:

[(1, 20756640), (2, 10378320), (3, 6918880), (4, 5189160), (5, 4151328), (6, 3459440), (8, 2594580), (10, 2075664), (12, 1729720), (15, 1383776), (16, 1297290), (20, 1037832), (24, 864860), (30, 691888), (32, 648645), (40, 518916), (48, 432430), (60, 345944), (80, 259458), (83, 250080), (96, 216215), (120, 172972), (160, 129729), (166, 125040), (240, 86486), (249, 83360), (332, 62520), (415, 50016), (480, 43243), (498, 41680), (521, 39840), (664, 31260), (830, 25008), (996, 20840), (1042, 19920), (1245, 16672), (1328, 15630), (1563, 13280), (1660, 12504), (1992, 10420), (2084, 9960), (2490, 8336), (2605, 7968), (2656, 7815), (3126, 6640), (3320, 6252), (3984, 5210), (4168, 4980)]