7901740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{733}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 21086352

約数和(自身を除く): 13184612

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 733, 770, 980, 1078, 1466, 1540, 2156, 2695, 2932, 3665, 5131, 5390, 7330, 8063, 10262, 10780, 14660, 16126, 20524, 25655, 32252, 35917, 40315, 51310, 56441, 71834, 80630, 102620, 112882, 143668, 161260, 179585, 225764, 282205, 359170, 395087, 564410, 718340, 790174, 1128820, 1580348, 1975435, 3950870, 7901740]

約数ペア:

[(1, 7901740), (2, 3950870), (4, 1975435), (5, 1580348), (7, 1128820), (10, 790174), (11, 718340), (14, 564410), (20, 395087), (22, 359170), (28, 282205), (35, 225764), (44, 179585), (49, 161260), (55, 143668), (70, 112882), (77, 102620), (98, 80630), (110, 71834), (140, 56441), (154, 51310), (196, 40315), (220, 35917), (245, 32252), (308, 25655), (385, 20524), (490, 16126), (539, 14660), (733, 10780), (770, 10262), (980, 8063), (1078, 7330), (1466, 5390), (1540, 5131), (2156, 3665), (2695, 2932)]