25230440

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1019}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 56916000

約数和(自身を除く): 31685560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1019, 1238, 2038, 2476, 3095, 4076, 4952, 5095, 6190, 8152, 10190, 12380, 20380, 24760, 40760, 630761, 1261522, 2523044, 3153805, 5046088, 6307610, 12615220, 25230440]

約数ペア:

[(1, 25230440), (2, 12615220), (4, 6307610), (5, 5046088), (8, 3153805), (10, 2523044), (20, 1261522), (40, 630761), (619, 40760), (1019, 24760), (1238, 20380), (2038, 12380), (2476, 10190), (3095, 8152), (4076, 6190), (4952, 5095)]