155237680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2534

約数の個数: 80

約数和(自身を含む): 395224704

約数和(自身を除く): 239987024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 2447, 3172, 3965, 4880, 4894, 6344, 7930, 9788, 12235, 12688, 15860, 19576, 24470, 31720, 31811, 39152, 48940, 63440, 63622, 97880, 127244, 149267, 159055, 195760, 254488, 298534, 318110, 508976, 597068, 636220, 746335, 1194136, 1272440, 1492670, 1940471, 2388272, 2544880, 2985340, 3880942, 5970680, 7761884, 9702355, 11941360, 15523768, 19404710, 31047536, 38809420, 77618840, 155237680]

約数ペア:

[(1, 155237680), (2, 77618840), (4, 38809420), (5, 31047536), (8, 19404710), (10, 15523768), (13, 11941360), (16, 9702355), (20, 7761884), (26, 5970680), (40, 3880942), (52, 2985340), (61, 2544880), (65, 2388272), (80, 1940471), (104, 1492670), (122, 1272440), (130, 1194136), (208, 746335), (244, 636220), (260, 597068), (305, 508976), (488, 318110), (520, 298534), (610, 254488), (793, 195760), (976, 159055), (1040, 149267), (1220, 127244), (1586, 97880), (2440, 63622), (2447, 63440), (3172, 48940), (3965, 39152), (4880, 31811), (4894, 31720), (6344, 24470), (7930, 19576), (9788, 15860), (12235, 12688)]