31301816

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 79564800

約数和(自身を除く): 48262984

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 31, 38, 52, 56, 62, 73, 76, 91, 104, 124, 133, 146, 152, 182, 217, 247, 248, 266, 292, 364, 403, 434, 494, 511, 532, 584, 589, 728, 806, 868, 949, 988, 1022, 1064, 1178, 1387, 1612, 1729, 1736, 1898, 1976, 2044, 2263, 2356, 2774, 2821, 3224, 3458, 3796, 4088, 4123, 4526, 4712, 5548, 5642, 6643, 6916, 7592, 7657, 8246, 9052, 9709, 11096, 11284, 13286, 13832, 15314, 15841, 16492, 18031, 18104, 19418, 22568, 26572, 29419, 30628, 31682, 32984, 36062, 38836, 42997, 53144, 53599, 58838, 61256, 63364, 72124, 77672, 85994, 107198, 117676, 126217, 126728, 144248, 171988, 205933, 214396, 235352, 252434, 300979, 343976, 411866, 428792, 504868, 558961, 601958, 823732, 1009736, 1117922, 1203916, 1647464, 2235844, 2407832, 3912727, 4471688, 7825454, 15650908, 31301816]

約数ペア:

[(1, 31301816), (2, 15650908), (4, 7825454), (7, 4471688), (8, 3912727), (13, 2407832), (14, 2235844), (19, 1647464), (26, 1203916), (28, 1117922), (31, 1009736), (38, 823732), (52, 601958), (56, 558961), (62, 504868), (73, 428792), (76, 411866), (91, 343976), (104, 300979), (124, 252434), (133, 235352), (146, 214396), (152, 205933), (182, 171988), (217, 144248), (247, 126728), (248, 126217), (266, 117676), (292, 107198), (364, 85994), (403, 77672), (434, 72124), (494, 63364), (511, 61256), (532, 58838), (584, 53599), (589, 53144), (728, 42997), (806, 38836), (868, 36062), (949, 32984), (988, 31682), (1022, 30628), (1064, 29419), (1178, 26572), (1387, 22568), (1612, 19418), (1729, 18104), (1736, 18031), (1898, 16492), (1976, 15841), (2044, 15314), (2263, 13832), (2356, 13286), (2774, 11284), (2821, 11096), (3224, 9709), (3458, 9052), (3796, 8246), (4088, 7657), (4123, 7592), (4526, 6916), (4712, 6643), (5548, 5642)]