31502925

素因数分解:

$3^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 60

約数和(自身を含む): 59775936

約数和(自身を除く): 28273011

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 81, 135, 141, 225, 235, 331, 405, 423, 675, 705, 993, 1175, 1269, 1655, 2025, 2115, 2979, 3525, 3807, 4965, 6345, 8275, 8937, 10575, 14895, 15557, 19035, 24825, 26811, 31725, 44685, 46671, 74475, 77785, 95175, 134055, 140013, 223425, 233355, 388925, 420039, 670275, 700065, 1166775, 1260117, 2100195, 3500325, 6300585, 10500975, 31502925]

約数ペア:

[(1, 31502925), (3, 10500975), (5, 6300585), (9, 3500325), (15, 2100195), (25, 1260117), (27, 1166775), (45, 700065), (47, 670275), (75, 420039), (81, 388925), (135, 233355), (141, 223425), (225, 140013), (235, 134055), (331, 95175), (405, 77785), (423, 74475), (675, 46671), (705, 44685), (993, 31725), (1175, 26811), (1269, 24825), (1655, 19035), (2025, 15557), (2115, 14895), (2979, 10575), (3525, 8937), (3807, 8275), (4965, 6345)]