28143350

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 55044096

約数和(自身を除く): 26900746

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 67, 134, 155, 271, 310, 335, 542, 670, 775, 1355, 1550, 1675, 2077, 2710, 3350, 4154, 6775, 8401, 10385, 13550, 16802, 18157, 20770, 36314, 42005, 51925, 84010, 90785, 103850, 181570, 210025, 420050, 453925, 562867, 907850, 1125734, 2814335, 5628670, 14071675, 28143350]

約数ペア:

[(1, 28143350), (2, 14071675), (5, 5628670), (10, 2814335), (25, 1125734), (31, 907850), (50, 562867), (62, 453925), (67, 420050), (134, 210025), (155, 181570), (271, 103850), (310, 90785), (335, 84010), (542, 51925), (670, 42005), (775, 36314), (1355, 20770), (1550, 18157), (1675, 16802), (2077, 13550), (2710, 10385), (3350, 8401), (4154, 6775)]