20139810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 51580800

約数和(自身を除く): 31440990

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 89, 95, 114, 178, 190, 267, 285, 397, 445, 534, 570, 794, 890, 1191, 1335, 1691, 1985, 2382, 2670, 3382, 3970, 5073, 5955, 7543, 8455, 10146, 11910, 15086, 16910, 22629, 25365, 35333, 37715, 45258, 50730, 70666, 75430, 105999, 113145, 176665, 211998, 226290, 353330, 529995, 671327, 1059990, 1342654, 2013981, 3356635, 4027962, 6713270, 10069905, 20139810]

約数ペア:

[(1, 20139810), (2, 10069905), (3, 6713270), (5, 4027962), (6, 3356635), (10, 2013981), (15, 1342654), (19, 1059990), (30, 671327), (38, 529995), (57, 353330), (89, 226290), (95, 211998), (114, 176665), (178, 113145), (190, 105999), (267, 75430), (285, 70666), (397, 50730), (445, 45258), (534, 37715), (570, 35333), (794, 25365), (890, 22629), (1191, 16910), (1335, 15086), (1691, 11910), (1985, 10146), (2382, 8455), (2670, 7543), (3382, 5955), (3970, 5073)]