646980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 1862784

約数和(自身を除く): 1215804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 263, 410, 492, 526, 615, 789, 820, 1052, 1230, 1315, 1578, 2460, 2630, 3156, 3945, 5260, 7890, 10783, 15780, 21566, 32349, 43132, 53915, 64698, 107830, 129396, 161745, 215660, 323490, 646980]

約数ペア:

[(1, 646980), (2, 323490), (3, 215660), (4, 161745), (5, 129396), (6, 107830), (10, 64698), (12, 53915), (15, 43132), (20, 32349), (30, 21566), (41, 15780), (60, 10783), (82, 7890), (123, 5260), (164, 3945), (205, 3156), (246, 2630), (263, 2460), (410, 1578), (492, 1315), (526, 1230), (615, 1052), (789, 820)]