20404550360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{54331}}^1$

素因数の和:54612

約数の個数: 64

約数和(自身を含む): 47236240800

約数和(自身を除く): 26831690440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 229, 328, 410, 458, 820, 916, 1145, 1640, 1832, 2290, 4580, 9160, 9389, 18778, 37556, 46945, 54331, 75112, 93890, 108662, 187780, 217324, 271655, 375560, 434648, 543310, 1086620, 2173240, 2227571, 4455142, 8910284, 11137855, 12441799, 17820568, 22275710, 24883598, 44551420, 49767196, 62208995, 89102840, 99534392, 124417990, 248835980, 497671960, 510113759, 1020227518, 2040455036, 2550568795, 4080910072, 5101137590, 10202275180, 20404550360]

約数ペア:

[(1, 20404550360), (2, 10202275180), (4, 5101137590), (5, 4080910072), (8, 2550568795), (10, 2040455036), (20, 1020227518), (40, 510113759), (41, 497671960), (82, 248835980), (164, 124417990), (205, 99534392), (229, 89102840), (328, 62208995), (410, 49767196), (458, 44551420), (820, 24883598), (916, 22275710), (1145, 17820568), (1640, 12441799), (1832, 11137855), (2290, 8910284), (4580, 4455142), (9160, 2227571), (9389, 2173240), (18778, 1086620), (37556, 543310), (46945, 434648), (54331, 375560), (75112, 271655), (93890, 217324), (108662, 187780)]