390545440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1226

約数の個数: 96

約数和(自身を含む): 966712320

約数和(自身を除く): 576166880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 71, 80, 124, 142, 155, 160, 248, 284, 310, 355, 496, 568, 620, 710, 992, 1109, 1136, 1240, 1420, 2201, 2218, 2272, 2480, 2840, 4402, 4436, 4960, 5545, 5680, 8804, 8872, 11005, 11090, 11360, 17608, 17744, 22010, 22180, 34379, 35216, 35488, 44020, 44360, 68758, 70432, 78739, 88040, 88720, 137516, 157478, 171895, 176080, 177440, 275032, 314956, 343790, 352160, 393695, 550064, 629912, 687580, 787390, 1100128, 1259824, 1375160, 1574780, 2440909, 2519648, 2750320, 3149560, 4881818, 5500640, 6299120, 9763636, 12204545, 12598240, 19527272, 24409090, 39054544, 48818180, 78109088, 97636360, 195272720, 390545440]

約数ペア:

[(1, 390545440), (2, 195272720), (4, 97636360), (5, 78109088), (8, 48818180), (10, 39054544), (16, 24409090), (20, 19527272), (31, 12598240), (32, 12204545), (40, 9763636), (62, 6299120), (71, 5500640), (80, 4881818), (124, 3149560), (142, 2750320), (155, 2519648), (160, 2440909), (248, 1574780), (284, 1375160), (310, 1259824), (355, 1100128), (496, 787390), (568, 687580), (620, 629912), (710, 550064), (992, 393695), (1109, 352160), (1136, 343790), (1240, 314956), (1420, 275032), (2201, 177440), (2218, 176080), (2272, 171895), (2480, 157478), (2840, 137516), (4402, 88720), (4436, 88040), (4960, 78739), (5545, 70432), (5680, 68758), (8804, 44360), (8872, 44020), (11005, 35488), (11090, 35216), (11360, 34379), (17608, 22180), (17744, 22010)]