81953880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9619}}^1$

素因数の和:9704

約数の個数: 64

約数和(自身を含む): 249350400

約数和(自身を除く): 167396520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 9619, 19238, 28857, 38476, 48095, 57714, 76952, 96190, 115428, 144285, 192380, 230856, 288570, 384760, 577140, 682949, 1154280, 1365898, 2048847, 2731796, 3414745, 4097694, 5463592, 6829490, 8195388, 10244235, 13658980, 16390776, 20488470, 27317960, 40976940, 81953880]

約数ペア:

[(1, 81953880), (2, 40976940), (3, 27317960), (4, 20488470), (5, 16390776), (6, 13658980), (8, 10244235), (10, 8195388), (12, 6829490), (15, 5463592), (20, 4097694), (24, 3414745), (30, 2731796), (40, 2048847), (60, 1365898), (71, 1154280), (120, 682949), (142, 577140), (213, 384760), (284, 288570), (355, 230856), (426, 192380), (568, 144285), (710, 115428), (852, 96190), (1065, 76952), (1420, 57714), (1704, 48095), (2130, 38476), (2840, 28857), (4260, 19238), (8520, 9619)]