31081960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8570

約数の個数: 64

約数和(自身を含む): 86083200

約数和(自身を除く): 55001240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 8539, 17078, 34156, 42695, 59773, 68312, 85390, 111007, 119546, 170780, 222014, 239092, 298865, 341560, 444028, 478184, 555035, 597730, 777049, 888056, 1110070, 1195460, 1554098, 2220140, 2390920, 3108196, 3885245, 4440280, 6216392, 7770490, 15540980, 31081960]

約数ペア:

[(1, 31081960), (2, 15540980), (4, 7770490), (5, 6216392), (7, 4440280), (8, 3885245), (10, 3108196), (13, 2390920), (14, 2220140), (20, 1554098), (26, 1195460), (28, 1110070), (35, 888056), (40, 777049), (52, 597730), (56, 555035), (65, 478184), (70, 444028), (91, 341560), (104, 298865), (130, 239092), (140, 222014), (182, 170780), (260, 119546), (280, 111007), (364, 85390), (455, 68312), (520, 59773), (728, 42695), (910, 34156), (1820, 17078), (3640, 8539)]