221070320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{145441}}^1$

素因数の和:145473

約数の個数: 40

約数和(自身を含む): 541044240

約数和(自身を除く): 319973920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 145441, 290882, 581764, 727205, 1163528, 1454410, 2327056, 2763379, 2908820, 5526758, 5817640, 11053516, 11635280, 13816895, 22107032, 27633790, 44214064, 55267580, 110535160, 221070320]

約数ペア:

[(1, 221070320), (2, 110535160), (4, 55267580), (5, 44214064), (8, 27633790), (10, 22107032), (16, 13816895), (19, 11635280), (20, 11053516), (38, 5817640), (40, 5526758), (76, 2908820), (80, 2763379), (95, 2327056), (152, 1454410), (190, 1163528), (304, 727205), (380, 581764), (760, 290882), (1520, 145441)]