19978290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4723}}^1$

素因数の和:4783

約数の個数: 48

約数和(自身を含む): 53059968

約数和(自身を除く): 33081678

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 90, 94, 141, 235, 282, 423, 470, 705, 846, 1410, 2115, 4230, 4723, 9446, 14169, 23615, 28338, 42507, 47230, 70845, 85014, 141690, 212535, 221981, 425070, 443962, 665943, 1109905, 1331886, 1997829, 2219810, 3329715, 3995658, 6659430, 9989145, 19978290]

約数ペア:

[(1, 19978290), (2, 9989145), (3, 6659430), (5, 3995658), (6, 3329715), (9, 2219810), (10, 1997829), (15, 1331886), (18, 1109905), (30, 665943), (45, 443962), (47, 425070), (90, 221981), (94, 212535), (141, 141690), (235, 85014), (282, 70845), (423, 47230), (470, 42507), (705, 28338), (846, 23615), (1410, 14169), (2115, 9446), (4230, 4723)]