1020778880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2377}}^1$

素因数の和:2468

約数の個数: 128

約数和(自身を含む): 2706924960

約数和(自身を除く): 1686146080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 64, 80, 88, 110, 122, 128, 160, 176, 220, 244, 305, 320, 352, 440, 488, 610, 640, 671, 704, 880, 976, 1220, 1342, 1408, 1760, 1952, 2377, 2440, 2684, 3355, 3520, 3904, 4754, 4880, 5368, 6710, 7040, 7808, 9508, 9760, 10736, 11885, 13420, 19016, 19520, 21472, 23770, 26147, 26840, 38032, 39040, 42944, 47540, 52294, 53680, 76064, 85888, 95080, 104588, 107360, 130735, 144997, 152128, 190160, 209176, 214720, 261470, 289994, 304256, 380320, 418352, 429440, 522940, 579988, 724985, 760640, 836704, 1045880, 1159976, 1449970, 1521280, 1594967, 1673408, 2091760, 2319952, 2899940, 3189934, 3346816, 4183520, 4639904, 5799880, 6379868, 7974835, 8367040, 9279808, 11599760, 12759736, 15949670, 16734080, 18559616, 23199520, 25519472, 31899340, 46399040, 51038944, 63798680, 92798080, 102077888, 127597360, 204155776, 255194720, 510389440, 1020778880]

約数ペア:

[(1, 1020778880), (2, 510389440), (4, 255194720), (5, 204155776), (8, 127597360), (10, 102077888), (11, 92798080), (16, 63798680), (20, 51038944), (22, 46399040), (32, 31899340), (40, 25519472), (44, 23199520), (55, 18559616), (61, 16734080), (64, 15949670), (80, 12759736), (88, 11599760), (110, 9279808), (122, 8367040), (128, 7974835), (160, 6379868), (176, 5799880), (220, 4639904), (244, 4183520), (305, 3346816), (320, 3189934), (352, 2899940), (440, 2319952), (488, 2091760), (610, 1673408), (640, 1594967), (671, 1521280), (704, 1449970), (880, 1159976), (976, 1045880), (1220, 836704), (1342, 760640), (1408, 724985), (1760, 579988), (1952, 522940), (2377, 429440), (2440, 418352), (2684, 380320), (3355, 304256), (3520, 289994), (3904, 261470), (4754, 214720), (4880, 209176), (5368, 190160), (6710, 152128), (7040, 144997), (7808, 130735), (9508, 107360), (9760, 104588), (10736, 95080), (11885, 85888), (13420, 76064), (19016, 53680), (19520, 52294), (21472, 47540), (23770, 42944), (26147, 39040), (26840, 38032)]