129438863980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{39705173}}^1$

素因数の和:39705345

約数の個数: 24

約数和(自身を含む): 273489238512

約数和(自身を除く): 144050374532

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 39705173, 79410346, 158820692, 198525865, 397051730, 794103460, 6471943199, 12943886398, 25887772796, 32359715995, 64719431990, 129438863980]

約数ペア:

[(1, 129438863980), (2, 64719431990), (4, 32359715995), (5, 25887772796), (10, 12943886398), (20, 6471943199), (163, 794103460), (326, 397051730), (652, 198525865), (815, 158820692), (1630, 79410346), (3260, 39705173)]