640949688

素因数分解:

$2^3\times 3^2\times {\mathrm{107}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:697

約数の個数: 96

約数和(自身を含む): 1764322560

約数和(自身を除く): 1123372872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 107, 214, 271, 307, 321, 428, 542, 614, 642, 813, 856, 921, 963, 1084, 1228, 1284, 1626, 1842, 1926, 2168, 2439, 2456, 2568, 2763, 3252, 3684, 3852, 4878, 5526, 6504, 7368, 7704, 9756, 11052, 19512, 22104, 28997, 32849, 57994, 65698, 83197, 86991, 98547, 115988, 131396, 166394, 173982, 197094, 231976, 249591, 260973, 262792, 295641, 332788, 347964, 394188, 499182, 521946, 591282, 665576, 695928, 748773, 788376, 998364, 1043892, 1182564, 1497546, 1996728, 2087784, 2365128, 2995092, 5990184, 8902079, 17804158, 26706237, 35608316, 53412474, 71216632, 80118711, 106824948, 160237422, 213649896, 320474844, 640949688]

約数ペア:

[(1, 640949688), (2, 320474844), (3, 213649896), (4, 160237422), (6, 106824948), (8, 80118711), (9, 71216632), (12, 53412474), (18, 35608316), (24, 26706237), (36, 17804158), (72, 8902079), (107, 5990184), (214, 2995092), (271, 2365128), (307, 2087784), (321, 1996728), (428, 1497546), (542, 1182564), (614, 1043892), (642, 998364), (813, 788376), (856, 748773), (921, 695928), (963, 665576), (1084, 591282), (1228, 521946), (1284, 499182), (1626, 394188), (1842, 347964), (1926, 332788), (2168, 295641), (2439, 262792), (2456, 260973), (2568, 249591), (2763, 231976), (3252, 197094), (3684, 173982), (3852, 166394), (4878, 131396), (5526, 115988), (6504, 98547), (7368, 86991), (7704, 83197), (9756, 65698), (11052, 57994), (19512, 32849), (22104, 28997)]