206543920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2971}}^1$

素因数の和:3074

約数の個数: 80

約数和(自身を含む): 530680320

約数和(自身を除く): 324136400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 440, 632, 790, 869, 880, 1264, 1580, 1738, 2971, 3160, 3476, 4345, 5942, 6320, 6952, 8690, 11884, 13904, 14855, 17380, 23768, 29710, 32681, 34760, 47536, 59420, 65362, 69520, 118840, 130724, 163405, 234709, 237680, 261448, 326810, 469418, 522896, 653620, 938836, 1173545, 1307240, 1877672, 2347090, 2581799, 2614480, 3755344, 4694180, 5163598, 9388360, 10327196, 12908995, 18776720, 20654392, 25817990, 41308784, 51635980, 103271960, 206543920]

約数ペア:

[(1, 206543920), (2, 103271960), (4, 51635980), (5, 41308784), (8, 25817990), (10, 20654392), (11, 18776720), (16, 12908995), (20, 10327196), (22, 9388360), (40, 5163598), (44, 4694180), (55, 3755344), (79, 2614480), (80, 2581799), (88, 2347090), (110, 1877672), (158, 1307240), (176, 1173545), (220, 938836), (316, 653620), (395, 522896), (440, 469418), (632, 326810), (790, 261448), (869, 237680), (880, 234709), (1264, 163405), (1580, 130724), (1738, 118840), (2971, 69520), (3160, 65362), (3476, 59420), (4345, 47536), (5942, 34760), (6320, 32681), (6952, 29710), (8690, 23768), (11884, 17380), (13904, 14855)]