77618840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2532

約数の個数: 64

約数和(自身を含む): 191237760

約数和(自身を除く): 113618920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 2447, 3172, 3965, 4894, 6344, 7930, 9788, 12235, 15860, 19576, 24470, 31720, 31811, 48940, 63622, 97880, 127244, 149267, 159055, 254488, 298534, 318110, 597068, 636220, 746335, 1194136, 1272440, 1492670, 1940471, 2985340, 3880942, 5970680, 7761884, 9702355, 15523768, 19404710, 38809420, 77618840]

約数ペア:

[(1, 77618840), (2, 38809420), (4, 19404710), (5, 15523768), (8, 9702355), (10, 7761884), (13, 5970680), (20, 3880942), (26, 2985340), (40, 1940471), (52, 1492670), (61, 1272440), (65, 1194136), (104, 746335), (122, 636220), (130, 597068), (244, 318110), (260, 298534), (305, 254488), (488, 159055), (520, 149267), (610, 127244), (793, 97880), (1220, 63622), (1586, 48940), (2440, 31811), (2447, 31720), (3172, 24470), (3965, 19576), (4894, 15860), (6344, 12235), (7930, 9788)]