19772080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^2\times {\mathrm{71}}^1$

素因数の和:202

約数の個数: 60

約数和(自身を含む): 47421072

約数和(自身を除く): 27648992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 71, 80, 118, 142, 236, 284, 295, 355, 472, 568, 590, 710, 944, 1136, 1180, 1420, 2360, 2840, 3481, 4189, 4720, 5680, 6962, 8378, 13924, 16756, 17405, 20945, 27848, 33512, 34810, 41890, 55696, 67024, 69620, 83780, 139240, 167560, 247151, 278480, 335120, 494302, 988604, 1235755, 1977208, 2471510, 3954416, 4943020, 9886040, 19772080]

約数ペア:

[(1, 19772080), (2, 9886040), (4, 4943020), (5, 3954416), (8, 2471510), (10, 1977208), (16, 1235755), (20, 988604), (40, 494302), (59, 335120), (71, 278480), (80, 247151), (118, 167560), (142, 139240), (236, 83780), (284, 69620), (295, 67024), (355, 55696), (472, 41890), (568, 34810), (590, 33512), (710, 27848), (944, 20945), (1136, 17405), (1180, 16756), (1420, 13924), (2360, 8378), (2840, 6962), (3481, 5680), (4189, 4720)]