13405640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 32832000

約数和(自身を除く): 19426360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 569, 589, 620, 760, 1138, 1178, 1240, 2276, 2356, 2845, 2945, 4552, 4712, 5690, 5890, 10811, 11380, 11780, 17639, 21622, 22760, 23560, 35278, 43244, 54055, 70556, 86488, 88195, 108110, 141112, 176390, 216220, 335141, 352780, 432440, 670282, 705560, 1340564, 1675705, 2681128, 3351410, 6702820, 13405640]

約数ペア:

[(1, 13405640), (2, 6702820), (4, 3351410), (5, 2681128), (8, 1675705), (10, 1340564), (19, 705560), (20, 670282), (31, 432440), (38, 352780), (40, 335141), (62, 216220), (76, 176390), (95, 141112), (124, 108110), (152, 88195), (155, 86488), (190, 70556), (248, 54055), (310, 43244), (380, 35278), (569, 23560), (589, 22760), (620, 21622), (760, 17639), (1138, 11780), (1178, 11380), (1240, 10811), (2276, 5890), (2356, 5690), (2845, 4712), (2945, 4552)]