18880320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:368

約数の個数: 112

約数和(自身を含む): 61008768

約数和(自身を除く): 42128448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 277, 284, 320, 355, 426, 480, 554, 568, 710, 831, 852, 960, 1065, 1108, 1136, 1385, 1420, 1662, 1704, 2130, 2216, 2272, 2770, 2840, 3324, 3408, 4155, 4260, 4432, 4544, 5540, 5680, 6648, 6816, 8310, 8520, 8864, 11080, 11360, 13296, 13632, 16620, 17040, 17728, 19667, 22160, 22720, 26592, 33240, 34080, 39334, 44320, 53184, 59001, 66480, 68160, 78668, 88640, 98335, 118002, 132960, 157336, 196670, 236004, 265920, 295005, 314672, 393340, 472008, 590010, 629344, 786680, 944016, 1180020, 1258688, 1573360, 1888032, 2360040, 3146720, 3776064, 4720080, 6293440, 9440160, 18880320]

約数ペア:

[(1, 18880320), (2, 9440160), (3, 6293440), (4, 4720080), (5, 3776064), (6, 3146720), (8, 2360040), (10, 1888032), (12, 1573360), (15, 1258688), (16, 1180020), (20, 944016), (24, 786680), (30, 629344), (32, 590010), (40, 472008), (48, 393340), (60, 314672), (64, 295005), (71, 265920), (80, 236004), (96, 196670), (120, 157336), (142, 132960), (160, 118002), (192, 98335), (213, 88640), (240, 78668), (277, 68160), (284, 66480), (320, 59001), (355, 53184), (426, 44320), (480, 39334), (554, 34080), (568, 33240), (710, 26592), (831, 22720), (852, 22160), (960, 19667), (1065, 17728), (1108, 17040), (1136, 16620), (1385, 13632), (1420, 13296), (1662, 11360), (1704, 11080), (2130, 8864), (2216, 8520), (2272, 8310), (2770, 6816), (2840, 6648), (3324, 5680), (3408, 5540), (4155, 4544), (4260, 4432)]