87128750

素因数分解:

$2^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1686

約数の個数: 40

約数和(自身を含む): 167215224

約数和(自身を除く): 80086474

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 430, 625, 1075, 1250, 1621, 2150, 3242, 5375, 8105, 10750, 16210, 26875, 40525, 53750, 69703, 81050, 139406, 202625, 348515, 405250, 697030, 1013125, 1742575, 2026250, 3485150, 8712875, 17425750, 43564375, 87128750]

約数ペア:

[(1, 87128750), (2, 43564375), (5, 17425750), (10, 8712875), (25, 3485150), (43, 2026250), (50, 1742575), (86, 1013125), (125, 697030), (215, 405250), (250, 348515), (430, 202625), (625, 139406), (1075, 81050), (1250, 69703), (1621, 53750), (2150, 40525), (3242, 26875), (5375, 16210), (8105, 10750)]