251848960

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 680504832

約数和(自身を除く): 428655872

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, 256, 310, 320, 341, 352, 440, 496, 577, 620, 640, 682, 704, 880, 992, 1154, 1240, 1280, 1364, 1408, 1705, 1760, 1984, 2308, 2480, 2728, 2816, 2885, 3410, 3520, 3968, 4616, 4960, 5456, 5770, 6347, 6820, 7040, 7936, 9232, 9920, 10912, 11540, 12694, 13640, 14080, 17887, 18464, 19840, 21824, 23080, 25388, 27280, 31735, 35774, 36928, 39680, 43648, 46160, 50776, 54560, 63470, 71548, 73856, 87296, 89435, 92320, 101552, 109120, 126940, 143096, 147712, 178870, 184640, 196757, 203104, 218240, 253880, 286192, 357740, 369280, 393514, 406208, 436480, 507760, 572384, 715480, 738560, 787028, 812416, 983785, 1015520, 1144768, 1430960, 1574056, 1624832, 1967570, 2031040, 2289536, 2861920, 3148112, 3935140, 4062080, 4579072, 5723840, 6296224, 7870280, 8124160, 11447680, 12592448, 15740560, 22895360, 25184896, 31481120, 50369792, 62962240, 125924480, 251848960]

約数ペア:

[(1, 251848960), (2, 125924480), (4, 62962240), (5, 50369792), (8, 31481120), (10, 25184896), (11, 22895360), (16, 15740560), (20, 12592448), (22, 11447680), (31, 8124160), (32, 7870280), (40, 6296224), (44, 5723840), (55, 4579072), (62, 4062080), (64, 3935140), (80, 3148112), (88, 2861920), (110, 2289536), (124, 2031040), (128, 1967570), (155, 1624832), (160, 1574056), (176, 1430960), (220, 1144768), (248, 1015520), (256, 983785), (310, 812416), (320, 787028), (341, 738560), (352, 715480), (440, 572384), (496, 507760), (577, 436480), (620, 406208), (640, 393514), (682, 369280), (704, 357740), (880, 286192), (992, 253880), (1154, 218240), (1240, 203104), (1280, 196757), (1364, 184640), (1408, 178870), (1705, 147712), (1760, 143096), (1984, 126940), (2308, 109120), (2480, 101552), (2728, 92320), (2816, 89435), (2885, 87296), (3410, 73856), (3520, 71548), (3968, 63470), (4616, 54560), (4960, 50776), (5456, 46160), (5770, 43648), (6347, 39680), (6820, 36928), (7040, 35774), (7936, 31735), (9232, 27280), (9920, 25388), (10912, 23080), (11540, 21824), (12694, 19840), (13640, 18464), (14080, 17887)]