20662850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 21334462

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 83, 130, 166, 325, 383, 415, 650, 766, 830, 1079, 1915, 2075, 2158, 3830, 4150, 4979, 5395, 9575, 9958, 10790, 19150, 24895, 26975, 31789, 49790, 53950, 63578, 124475, 158945, 248950, 317890, 413257, 794725, 826514, 1589450, 2066285, 4132570, 10331425, 20662850]

約数ペア:

[(1, 20662850), (2, 10331425), (5, 4132570), (10, 2066285), (13, 1589450), (25, 826514), (26, 794725), (50, 413257), (65, 317890), (83, 248950), (130, 158945), (166, 124475), (325, 63578), (383, 53950), (415, 49790), (650, 31789), (766, 26975), (830, 24895), (1079, 19150), (1915, 10790), (2075, 9958), (2158, 9575), (3830, 5395), (4150, 4979)]