81968940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9689}}^1$

素因数の和:9751

約数の個数: 72

約数和(自身を含む): 253955520

約数和(自身を除く): 171986580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 8460, 9689, 19378, 29067, 38756, 48445, 58134, 87201, 96890, 116268, 145335, 174402, 193780, 290670, 348804, 436005, 455383, 581340, 872010, 910766, 1366149, 1744020, 1821532, 2276915, 2732298, 4098447, 4553830, 5464596, 6830745, 8196894, 9107660, 13661490, 16393788, 20492235, 27322980, 40984470, 81968940]

約数ペア:

[(1, 81968940), (2, 40984470), (3, 27322980), (4, 20492235), (5, 16393788), (6, 13661490), (9, 9107660), (10, 8196894), (12, 6830745), (15, 5464596), (18, 4553830), (20, 4098447), (30, 2732298), (36, 2276915), (45, 1821532), (47, 1744020), (60, 1366149), (90, 910766), (94, 872010), (141, 581340), (180, 455383), (188, 436005), (235, 348804), (282, 290670), (423, 193780), (470, 174402), (564, 145335), (705, 116268), (846, 96890), (940, 87201), (1410, 58134), (1692, 48445), (2115, 38756), (2820, 29067), (4230, 19378), (8460, 9689)]