16816880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6781}}^1$

素因数の和:6825

約数の個数: 40

約数和(自身を含む): 40366464

約数和(自身を除く): 23549584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6781, 13562, 27124, 33905, 54248, 67810, 108496, 135620, 210211, 271240, 420422, 542480, 840844, 1051055, 1681688, 2102110, 3363376, 4204220, 8408440, 16816880]

約数ペア:

[(1, 16816880), (2, 8408440), (4, 4204220), (5, 3363376), (8, 2102110), (10, 1681688), (16, 1051055), (20, 840844), (31, 542480), (40, 420422), (62, 271240), (80, 210211), (124, 135620), (155, 108496), (248, 67810), (310, 54248), (496, 33905), (620, 27124), (1240, 13562), (2480, 6781)]