205889640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2643

約数の個数: 128

約数和(自身を含む): 685134720

約数和(自身を除く): 479245080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2013, 2440, 2557, 2684, 3355, 3660, 4026, 5114, 5368, 6710, 7320, 7671, 8052, 10065, 10228, 12785, 13420, 15342, 16104, 20130, 20456, 25570, 26840, 28127, 30684, 38355, 40260, 51140, 56254, 61368, 76710, 80520, 84381, 102280, 112508, 140635, 153420, 155977, 168762, 225016, 281270, 306840, 311954, 337524, 421905, 467931, 562540, 623908, 675048, 779885, 843810, 935862, 1125080, 1247816, 1559770, 1687620, 1715747, 1871724, 2339655, 3119540, 3375240, 3431494, 3743448, 4679310, 5147241, 6239080, 6862988, 8578735, 9358620, 10294482, 13725976, 17157470, 18717240, 20588964, 25736205, 34314940, 41177928, 51472410, 68629880, 102944820, 205889640]

約数ペア:

[(1, 205889640), (2, 102944820), (3, 68629880), (4, 51472410), (5, 41177928), (6, 34314940), (8, 25736205), (10, 20588964), (11, 18717240), (12, 17157470), (15, 13725976), (20, 10294482), (22, 9358620), (24, 8578735), (30, 6862988), (33, 6239080), (40, 5147241), (44, 4679310), (55, 3743448), (60, 3431494), (61, 3375240), (66, 3119540), (88, 2339655), (110, 1871724), (120, 1715747), (122, 1687620), (132, 1559770), (165, 1247816), (183, 1125080), (220, 935862), (244, 843810), (264, 779885), (305, 675048), (330, 623908), (366, 562540), (440, 467931), (488, 421905), (610, 337524), (660, 311954), (671, 306840), (732, 281270), (915, 225016), (1220, 168762), (1320, 155977), (1342, 153420), (1464, 140635), (1830, 112508), (2013, 102280), (2440, 84381), (2557, 80520), (2684, 76710), (3355, 61368), (3660, 56254), (4026, 51140), (5114, 40260), (5368, 38355), (6710, 30684), (7320, 28127), (7671, 26840), (8052, 25570), (10065, 20456), (10228, 20130), (12785, 16104), (13420, 15342)]