488540780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1304

約数の個数: 144

約数和(自身を含む): 1327769856

約数和(自身を除く): 839229076

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 434, 455, 490, 620, 637, 806, 868, 910, 980, 1085, 1237, 1274, 1519, 1612, 1820, 2015, 2170, 2474, 2548, 2821, 3038, 3185, 4030, 4340, 4948, 5642, 6076, 6185, 6370, 7595, 8060, 8659, 11284, 12370, 12740, 14105, 15190, 16081, 17318, 19747, 24740, 28210, 30380, 32162, 34636, 38347, 39494, 43295, 56420, 60613, 64324, 76694, 78988, 80405, 86590, 98735, 112567, 121226, 153388, 160810, 173180, 191735, 197470, 225134, 242452, 268429, 303065, 321620, 383470, 394940, 450268, 498511, 536858, 562835, 606130, 766940, 787969, 997022, 1073716, 1125670, 1212260, 1342145, 1575938, 1879003, 1994044, 2251340, 2492555, 2684290, 3151876, 3489577, 3758006, 3939845, 4985110, 5368580, 6979154, 7516012, 7879690, 9395015, 9970220, 13958308, 15759380, 17447885, 18790030, 24427039, 34895770, 37580060, 48854078, 69791540, 97708156, 122135195, 244270390, 488540780]

約数ペア:

[(1, 488540780), (2, 244270390), (4, 122135195), (5, 97708156), (7, 69791540), (10, 48854078), (13, 37580060), (14, 34895770), (20, 24427039), (26, 18790030), (28, 17447885), (31, 15759380), (35, 13958308), (49, 9970220), (52, 9395015), (62, 7879690), (65, 7516012), (70, 6979154), (91, 5368580), (98, 4985110), (124, 3939845), (130, 3758006), (140, 3489577), (155, 3151876), (182, 2684290), (196, 2492555), (217, 2251340), (245, 1994044), (260, 1879003), (310, 1575938), (364, 1342145), (403, 1212260), (434, 1125670), (455, 1073716), (490, 997022), (620, 787969), (637, 766940), (806, 606130), (868, 562835), (910, 536858), (980, 498511), (1085, 450268), (1237, 394940), (1274, 383470), (1519, 321620), (1612, 303065), (1820, 268429), (2015, 242452), (2170, 225134), (2474, 197470), (2548, 191735), (2821, 173180), (3038, 160810), (3185, 153388), (4030, 121226), (4340, 112567), (4948, 98735), (5642, 86590), (6076, 80405), (6185, 78988), (6370, 76694), (7595, 64324), (8060, 60613), (8659, 56420), (11284, 43295), (12370, 39494), (12740, 38347), (14105, 34636), (15190, 32162), (16081, 30380), (17318, 28210), (19747, 24740)]