664659080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{691}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 1517140800

約数和(自身を除く): 852481720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 173, 278, 346, 556, 691, 692, 695, 865, 1112, 1382, 1384, 1390, 1730, 2764, 2780, 3455, 3460, 5528, 5560, 6910, 6920, 13820, 24047, 27640, 48094, 96049, 96188, 119543, 120235, 192098, 192376, 239086, 240470, 384196, 478172, 480245, 480940, 597715, 768392, 956344, 960490, 961880, 1195430, 1920980, 2390860, 3841960, 4781720, 16616477, 33232954, 66465908, 83082385, 132931816, 166164770, 332329540, 664659080]

約数ペア:

[(1, 664659080), (2, 332329540), (4, 166164770), (5, 132931816), (8, 83082385), (10, 66465908), (20, 33232954), (40, 16616477), (139, 4781720), (173, 3841960), (278, 2390860), (346, 1920980), (556, 1195430), (691, 961880), (692, 960490), (695, 956344), (865, 768392), (1112, 597715), (1382, 480940), (1384, 480245), (1390, 478172), (1730, 384196), (2764, 240470), (2780, 239086), (3455, 192376), (3460, 192098), (5528, 120235), (5560, 119543), (6910, 96188), (6920, 96049), (13820, 48094), (24047, 27640)]