1213240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{619}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 3180600

約数和(自身を除く): 1967360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 619, 980, 1238, 1960, 2476, 3095, 4333, 4952, 6190, 8666, 12380, 17332, 21665, 24760, 30331, 34664, 43330, 60662, 86660, 121324, 151655, 173320, 242648, 303310, 606620, 1213240]

約数ペア:

[(1, 1213240), (2, 606620), (4, 303310), (5, 242648), (7, 173320), (8, 151655), (10, 121324), (14, 86660), (20, 60662), (28, 43330), (35, 34664), (40, 30331), (49, 24760), (56, 21665), (70, 17332), (98, 12380), (140, 8666), (196, 6190), (245, 4952), (280, 4333), (392, 3095), (490, 2476), (619, 1960), (980, 1238)]