1290660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{439}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 4213440

約数和(自身を除く): 2922780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 439, 490, 588, 735, 878, 980, 1317, 1470, 1756, 2195, 2634, 2940, 3073, 4390, 5268, 6146, 6585, 8780, 9219, 12292, 13170, 15365, 18438, 21511, 26340, 30730, 36876, 43022, 46095, 61460, 64533, 86044, 92190, 107555, 129066, 184380, 215110, 258132, 322665, 430220, 645330, 1290660]

約数ペア:

[(1, 1290660), (2, 645330), (3, 430220), (4, 322665), (5, 258132), (6, 215110), (7, 184380), (10, 129066), (12, 107555), (14, 92190), (15, 86044), (20, 64533), (21, 61460), (28, 46095), (30, 43022), (35, 36876), (42, 30730), (49, 26340), (60, 21511), (70, 18438), (84, 15365), (98, 13170), (105, 12292), (140, 9219), (147, 8780), (196, 6585), (210, 6146), (245, 5268), (294, 4390), (420, 3073), (439, 2940), (490, 2634), (588, 2195), (735, 1756), (878, 1470), (980, 1317)]