261569281780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^2\times {\mathrm{26921}}^1$

素因数の和:27046

約数の個数: 108

約数和(自身を含む): 598108897764

約数和(自身を除く): 336539615984

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 289, 340, 410, 578, 697, 820, 1156, 1394, 1445, 1681, 2788, 2890, 3362, 3485, 5780, 6724, 6970, 8405, 11849, 13940, 16810, 23698, 26921, 28577, 33620, 47396, 53842, 57154, 59245, 107684, 114308, 118490, 134605, 142885, 236980, 269210, 285770, 457657, 485809, 538420, 571540, 915314, 971618, 1103761, 1830628, 1943236, 2207522, 2288285, 2429045, 4415044, 4576570, 4858090, 5518805, 7780169, 9153140, 9716180, 11037610, 15560338, 18763937, 22075220, 31120676, 37527874, 38900845, 45254201, 75055748, 77801690, 90508402, 93819685, 155603380, 181016804, 187639370, 226271005, 318986929, 375278740, 452542010, 637973858, 769321417, 905084020, 1275947716, 1538642834, 1594934645, 3077285668, 3189869290, 3846607085, 6379738580, 7693214170, 13078464089, 15386428340, 26156928178, 52313856356, 65392320445, 130784640890, 261569281780]

約数ペア:

[(1, 261569281780), (2, 130784640890), (4, 65392320445), (5, 52313856356), (10, 26156928178), (17, 15386428340), (20, 13078464089), (34, 7693214170), (41, 6379738580), (68, 3846607085), (82, 3189869290), (85, 3077285668), (164, 1594934645), (170, 1538642834), (205, 1275947716), (289, 905084020), (340, 769321417), (410, 637973858), (578, 452542010), (697, 375278740), (820, 318986929), (1156, 226271005), (1394, 187639370), (1445, 181016804), (1681, 155603380), (2788, 93819685), (2890, 90508402), (3362, 77801690), (3485, 75055748), (5780, 45254201), (6724, 38900845), (6970, 37527874), (8405, 31120676), (11849, 22075220), (13940, 18763937), (16810, 15560338), (23698, 11037610), (26921, 9716180), (28577, 9153140), (33620, 7780169), (47396, 5518805), (53842, 4858090), (57154, 4576570), (59245, 4415044), (107684, 2429045), (114308, 2288285), (118490, 2207522), (134605, 1943236), (142885, 1830628), (236980, 1103761), (269210, 971618), (285770, 915314), (457657, 571540), (485809, 538420)]