406144640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1922

約数の個数: 128

約数和(自身を含む): 1093962240

約数和(自身を除く): 687817600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 992, 1240, 1364, 1408, 1705, 1760, 1861, 1984, 2480, 2728, 3410, 3520, 3722, 3968, 4960, 5456, 6820, 7040, 7444, 9305, 9920, 10912, 13640, 14888, 18610, 19840, 20471, 21824, 27280, 29776, 37220, 40942, 43648, 54560, 57691, 59552, 74440, 81884, 102355, 109120, 115382, 119104, 148880, 163768, 204710, 218240, 230764, 238208, 288455, 297760, 327536, 409420, 461528, 576910, 595520, 634601, 655072, 818840, 923056, 1153820, 1191040, 1269202, 1310144, 1637680, 1846112, 2307640, 2538404, 2620288, 3173005, 3275360, 3692224, 4615280, 5076808, 6346010, 6550720, 7384448, 9230560, 10153616, 12692020, 13101440, 18461120, 20307232, 25384040, 36922240, 40614464, 50768080, 81228928, 101536160, 203072320, 406144640]

約数ペア:

[(1, 406144640), (2, 203072320), (4, 101536160), (5, 81228928), (8, 50768080), (10, 40614464), (11, 36922240), (16, 25384040), (20, 20307232), (22, 18461120), (31, 13101440), (32, 12692020), (40, 10153616), (44, 9230560), (55, 7384448), (62, 6550720), (64, 6346010), (80, 5076808), (88, 4615280), (110, 3692224), (124, 3275360), (128, 3173005), (155, 2620288), (160, 2538404), (176, 2307640), (220, 1846112), (248, 1637680), (310, 1310144), (320, 1269202), (341, 1191040), (352, 1153820), (440, 923056), (496, 818840), (620, 655072), (640, 634601), (682, 595520), (704, 576910), (880, 461528), (992, 409420), (1240, 327536), (1364, 297760), (1408, 288455), (1705, 238208), (1760, 230764), (1861, 218240), (1984, 204710), (2480, 163768), (2728, 148880), (3410, 119104), (3520, 115382), (3722, 109120), (3968, 102355), (4960, 81884), (5456, 74440), (6820, 59552), (7040, 57691), (7444, 54560), (9305, 43648), (9920, 40942), (10912, 37220), (13640, 29776), (14888, 27280), (18610, 21824), (19840, 20471)]