1881240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 5758560

約数和(自身を除く): 3877320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 257, 305, 366, 488, 514, 610, 732, 771, 915, 1028, 1220, 1285, 1464, 1542, 1830, 2056, 2440, 2570, 3084, 3660, 3855, 5140, 6168, 7320, 7710, 10280, 15420, 15677, 30840, 31354, 47031, 62708, 78385, 94062, 125416, 156770, 188124, 235155, 313540, 376248, 470310, 627080, 940620, 1881240]

約数ペア:

[(1, 1881240), (2, 940620), (3, 627080), (4, 470310), (5, 376248), (6, 313540), (8, 235155), (10, 188124), (12, 156770), (15, 125416), (20, 94062), (24, 78385), (30, 62708), (40, 47031), (60, 31354), (61, 30840), (120, 15677), (122, 15420), (183, 10280), (244, 7710), (257, 7320), (305, 6168), (366, 5140), (488, 3855), (514, 3660), (610, 3084), (732, 2570), (771, 2440), (915, 2056), (1028, 1830), (1220, 1542), (1285, 1464)]