31981098910

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1\times {\mathrm{919}}^1$

素因数の和:1717

約数の個数: 64

約数和(自身を含む): 59323881600

約数和(自身を除く): 27342782690

約数列:

[1, 2, 5, 10, 61, 89, 122, 178, 305, 445, 610, 641, 890, 919, 1282, 1838, 3205, 4595, 5429, 6410, 9190, 10858, 27145, 39101, 54290, 56059, 57049, 78202, 81791, 112118, 114098, 163582, 195505, 280295, 285245, 391010, 408955, 560590, 570490, 589079, 817910, 1178158, 2945395, 3479989, 4989251, 5890790, 6959978, 9978502, 17399945, 24946255, 34799890, 35933819, 49892510, 52428031, 71867638, 104856062, 179669095, 262140155, 359338190, 524280310, 3198109891, 6396219782, 15990549455, 31981098910]

約数ペア:

[(1, 31981098910), (2, 15990549455), (5, 6396219782), (10, 3198109891), (61, 524280310), (89, 359338190), (122, 262140155), (178, 179669095), (305, 104856062), (445, 71867638), (610, 52428031), (641, 49892510), (890, 35933819), (919, 34799890), (1282, 24946255), (1838, 17399945), (3205, 9978502), (4595, 6959978), (5429, 5890790), (6410, 4989251), (9190, 3479989), (10858, 2945395), (27145, 1178158), (39101, 817910), (54290, 589079), (56059, 570490), (57049, 560590), (78202, 408955), (81791, 391010), (112118, 285245), (114098, 280295), (163582, 195505)]