18670480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 46247040

約数和(自身を除く): 27576560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 73, 80, 92, 115, 139, 146, 184, 230, 278, 292, 365, 368, 460, 556, 584, 695, 730, 920, 1112, 1168, 1390, 1460, 1679, 1840, 2224, 2780, 2920, 3197, 3358, 5560, 5840, 6394, 6716, 8395, 10147, 11120, 12788, 13432, 15985, 16790, 20294, 25576, 26864, 31970, 33580, 40588, 50735, 51152, 63940, 67160, 81176, 101470, 127880, 134320, 162352, 202940, 233381, 255760, 405880, 466762, 811760, 933524, 1166905, 1867048, 2333810, 3734096, 4667620, 9335240, 18670480]

約数ペア:

[(1, 18670480), (2, 9335240), (4, 4667620), (5, 3734096), (8, 2333810), (10, 1867048), (16, 1166905), (20, 933524), (23, 811760), (40, 466762), (46, 405880), (73, 255760), (80, 233381), (92, 202940), (115, 162352), (139, 134320), (146, 127880), (184, 101470), (230, 81176), (278, 67160), (292, 63940), (365, 51152), (368, 50735), (460, 40588), (556, 33580), (584, 31970), (695, 26864), (730, 25576), (920, 20294), (1112, 16790), (1168, 15985), (1390, 13432), (1460, 12788), (1679, 11120), (1840, 10147), (2224, 8395), (2780, 6716), (2920, 6394), (3197, 5840), (3358, 5560)]