18626960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 48157632

約数和(自身を除く): 29530672

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 176, 220, 244, 305, 347, 440, 488, 610, 671, 694, 880, 976, 1220, 1342, 1388, 1735, 2440, 2684, 2776, 3355, 3470, 3817, 4880, 5368, 5552, 6710, 6940, 7634, 10736, 13420, 13880, 15268, 19085, 21167, 26840, 27760, 30536, 38170, 42334, 53680, 61072, 76340, 84668, 105835, 152680, 169336, 211670, 232837, 305360, 338672, 423340, 465674, 846680, 931348, 1164185, 1693360, 1862696, 2328370, 3725392, 4656740, 9313480, 18626960]

約数ペア:

[(1, 18626960), (2, 9313480), (4, 4656740), (5, 3725392), (8, 2328370), (10, 1862696), (11, 1693360), (16, 1164185), (20, 931348), (22, 846680), (40, 465674), (44, 423340), (55, 338672), (61, 305360), (80, 232837), (88, 211670), (110, 169336), (122, 152680), (176, 105835), (220, 84668), (244, 76340), (305, 61072), (347, 53680), (440, 42334), (488, 38170), (610, 30536), (671, 27760), (694, 26840), (880, 21167), (976, 19085), (1220, 15268), (1342, 13880), (1388, 13420), (1735, 10736), (2440, 7634), (2684, 6940), (2776, 6710), (3355, 5552), (3470, 5368), (3817, 4880)]