28937900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^2\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 54

約数和(自身を含む): 64649508

約数和(自身を除く): 35711608

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 131, 188, 235, 262, 470, 524, 655, 940, 1175, 1310, 2209, 2350, 2620, 3275, 4418, 4700, 6157, 6550, 8836, 11045, 12314, 13100, 22090, 24628, 30785, 44180, 55225, 61570, 110450, 123140, 153925, 220900, 289379, 307850, 578758, 615700, 1157516, 1446895, 2893790, 5787580, 7234475, 14468950, 28937900]

約数ペア:

[(1, 28937900), (2, 14468950), (4, 7234475), (5, 5787580), (10, 2893790), (20, 1446895), (25, 1157516), (47, 615700), (50, 578758), (94, 307850), (100, 289379), (131, 220900), (188, 153925), (235, 123140), (262, 110450), (470, 61570), (524, 55225), (655, 44180), (940, 30785), (1175, 24628), (1310, 22090), (2209, 13100), (2350, 12314), (2620, 11045), (3275, 8836), (4418, 6550), (4700, 6157)]