25205680

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{619}}^1$

素因数の和:1141

約数の個数: 40

約数和(自身を含む): 58813200

約数和(自身を除く): 33607520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 619, 1018, 1238, 2036, 2476, 2545, 3095, 4072, 4952, 5090, 6190, 8144, 9904, 10180, 12380, 20360, 24760, 40720, 49520, 315071, 630142, 1260284, 1575355, 2520568, 3150710, 5041136, 6301420, 12602840, 25205680]

約数ペア:

[(1, 25205680), (2, 12602840), (4, 6301420), (5, 5041136), (8, 3150710), (10, 2520568), (16, 1575355), (20, 1260284), (40, 630142), (80, 315071), (509, 49520), (619, 40720), (1018, 24760), (1238, 20360), (2036, 12380), (2476, 10180), (2545, 9904), (3095, 8144), (4072, 6190), (4952, 5090)]