31245830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 144

約数和(自身を含む): 78599808

約数和(自身を除く): 47353978

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 31, 34, 35, 49, 55, 62, 70, 77, 85, 98, 110, 119, 121, 154, 155, 170, 187, 217, 238, 242, 245, 310, 341, 374, 385, 434, 490, 527, 539, 595, 605, 682, 770, 833, 847, 935, 1054, 1078, 1085, 1190, 1210, 1309, 1519, 1666, 1694, 1705, 1870, 2057, 2170, 2387, 2618, 2635, 2695, 3038, 3410, 3689, 3751, 4114, 4165, 4235, 4774, 5270, 5390, 5797, 5929, 6545, 7378, 7502, 7595, 8330, 8470, 9163, 10285, 11594, 11858, 11935, 13090, 14399, 15190, 16709, 18326, 18445, 18755, 20570, 23870, 25823, 26257, 28798, 28985, 29645, 33418, 36890, 37510, 40579, 45815, 51646, 52514, 57970, 59290, 63767, 71995, 81158, 83545, 91630, 100793, 127534, 129115, 131285, 143990, 167090, 183799, 201586, 202895, 258230, 262570, 284053, 318835, 367598, 405790, 446369, 503965, 568106, 637670, 892738, 918995, 1007930, 1420265, 1837990, 2231845, 2840530, 3124583, 4463690, 6249166, 15622915, 31245830]

約数ペア:

[(1, 31245830), (2, 15622915), (5, 6249166), (7, 4463690), (10, 3124583), (11, 2840530), (14, 2231845), (17, 1837990), (22, 1420265), (31, 1007930), (34, 918995), (35, 892738), (49, 637670), (55, 568106), (62, 503965), (70, 446369), (77, 405790), (85, 367598), (98, 318835), (110, 284053), (119, 262570), (121, 258230), (154, 202895), (155, 201586), (170, 183799), (187, 167090), (217, 143990), (238, 131285), (242, 129115), (245, 127534), (310, 100793), (341, 91630), (374, 83545), (385, 81158), (434, 71995), (490, 63767), (527, 59290), (539, 57970), (595, 52514), (605, 51646), (682, 45815), (770, 40579), (833, 37510), (847, 36890), (935, 33418), (1054, 29645), (1078, 28985), (1085, 28798), (1190, 26257), (1210, 25823), (1309, 23870), (1519, 20570), (1666, 18755), (1694, 18445), (1705, 18326), (1870, 16709), (2057, 15190), (2170, 14399), (2387, 13090), (2618, 11935), (2635, 11858), (2695, 11594), (3038, 10285), (3410, 9163), (3689, 8470), (3751, 8330), (4114, 7595), (4165, 7502), (4235, 7378), (4774, 6545), (5270, 5929), (5390, 5797)]