661971720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{9661}}^1$

素因数の和:10246

約数の個数: 64

約数和(自身を含む): 1989599040

約数和(自身を除く): 1327627320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 571, 1142, 1713, 2284, 2855, 3426, 4568, 5710, 6852, 8565, 9661, 11420, 13704, 17130, 19322, 22840, 28983, 34260, 38644, 48305, 57966, 68520, 77288, 96610, 115932, 144915, 193220, 231864, 289830, 386440, 579660, 1159320, 5516431, 11032862, 16549293, 22065724, 27582155, 33098586, 44131448, 55164310, 66197172, 82746465, 110328620, 132394344, 165492930, 220657240, 330985860, 661971720]

約数ペア:

[(1, 661971720), (2, 330985860), (3, 220657240), (4, 165492930), (5, 132394344), (6, 110328620), (8, 82746465), (10, 66197172), (12, 55164310), (15, 44131448), (20, 33098586), (24, 27582155), (30, 22065724), (40, 16549293), (60, 11032862), (120, 5516431), (571, 1159320), (1142, 579660), (1713, 386440), (2284, 289830), (2855, 231864), (3426, 193220), (4568, 144915), (5710, 115932), (6852, 96610), (8565, 77288), (9661, 68520), (11420, 57966), (13704, 48305), (17130, 38644), (19322, 34260), (22840, 28983)]