31439980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10993}}^1$

素因数の和:11026

約数の個数: 48

約数和(自身を含む): 77573664

約数和(自身を除く): 46133684

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 10993, 21986, 43972, 54965, 109930, 120923, 142909, 219860, 241846, 285818, 483692, 571636, 604615, 714545, 1209230, 1429090, 1571999, 2418460, 2858180, 3143998, 6287996, 7859995, 15719990, 31439980]

約数ペア:

[(1, 31439980), (2, 15719990), (4, 7859995), (5, 6287996), (10, 3143998), (11, 2858180), (13, 2418460), (20, 1571999), (22, 1429090), (26, 1209230), (44, 714545), (52, 604615), (55, 571636), (65, 483692), (110, 285818), (130, 241846), (143, 219860), (220, 142909), (260, 120923), (286, 109930), (572, 54965), (715, 43972), (1430, 21986), (2860, 10993)]