161871920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1597}}^1$

素因数の和:1798

約数の個数: 80

約数和(自身を含む): 432763968

約数和(自身を除く): 270892048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 181, 280, 362, 560, 724, 905, 1267, 1448, 1597, 1810, 2534, 2896, 3194, 3620, 5068, 6335, 6388, 7240, 7985, 10136, 11179, 12670, 12776, 14480, 15970, 20272, 22358, 25340, 25552, 31940, 44716, 50680, 55895, 63880, 89432, 101360, 111790, 127760, 178864, 223580, 289057, 447160, 578114, 894320, 1156228, 1445285, 2023399, 2312456, 2890570, 4046798, 4624912, 5781140, 8093596, 10116995, 11562280, 16187192, 20233990, 23124560, 32374384, 40467980, 80935960, 161871920]

約数ペア:

[(1, 161871920), (2, 80935960), (4, 40467980), (5, 32374384), (7, 23124560), (8, 20233990), (10, 16187192), (14, 11562280), (16, 10116995), (20, 8093596), (28, 5781140), (35, 4624912), (40, 4046798), (56, 2890570), (70, 2312456), (80, 2023399), (112, 1445285), (140, 1156228), (181, 894320), (280, 578114), (362, 447160), (560, 289057), (724, 223580), (905, 178864), (1267, 127760), (1448, 111790), (1597, 101360), (1810, 89432), (2534, 63880), (2896, 55895), (3194, 50680), (3620, 44716), (5068, 31940), (6335, 25552), (6388, 25340), (7240, 22358), (7985, 20272), (10136, 15970), (11179, 14480), (12670, 12776)]