1387744760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{2671}}^1$

素因数の和:3132

約数の個数: 64

約数和(自身を含む): 3232051200

約数和(自身を除く): 1844306440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 419, 620, 838, 1240, 1676, 2095, 2671, 3352, 4190, 5342, 8380, 10684, 12989, 13355, 16760, 21368, 25978, 26710, 51956, 53420, 64945, 82801, 103912, 106840, 129890, 165602, 259780, 331204, 414005, 519560, 662408, 828010, 1119149, 1656020, 2238298, 3312040, 4476596, 5595745, 8953192, 11191490, 22382980, 34693619, 44765960, 69387238, 138774476, 173468095, 277548952, 346936190, 693872380, 1387744760]

約数ペア:

[(1, 1387744760), (2, 693872380), (4, 346936190), (5, 277548952), (8, 173468095), (10, 138774476), (20, 69387238), (31, 44765960), (40, 34693619), (62, 22382980), (124, 11191490), (155, 8953192), (248, 5595745), (310, 4476596), (419, 3312040), (620, 2238298), (838, 1656020), (1240, 1119149), (1676, 828010), (2095, 662408), (2671, 519560), (3352, 414005), (4190, 331204), (5342, 259780), (8380, 165602), (10684, 129890), (12989, 106840), (13355, 103912), (16760, 82801), (21368, 64945), (25978, 53420), (26710, 51956)]