18659940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 57576960

約数和(自身を除く): 38917020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 188, 195, 235, 260, 282, 390, 470, 509, 564, 611, 705, 780, 940, 1018, 1222, 1410, 1527, 1833, 2036, 2444, 2545, 2820, 3054, 3055, 3666, 5090, 6108, 6110, 6617, 7332, 7635, 9165, 10180, 12220, 13234, 15270, 18330, 19851, 23923, 26468, 30540, 33085, 36660, 39702, 47846, 66170, 71769, 79404, 95692, 99255, 119615, 132340, 143538, 198510, 239230, 287076, 310999, 358845, 397020, 478460, 621998, 717690, 932997, 1243996, 1435380, 1554995, 1865994, 3109990, 3731988, 4664985, 6219980, 9329970, 18659940]

約数ペア:

[(1, 18659940), (2, 9329970), (3, 6219980), (4, 4664985), (5, 3731988), (6, 3109990), (10, 1865994), (12, 1554995), (13, 1435380), (15, 1243996), (20, 932997), (26, 717690), (30, 621998), (39, 478460), (47, 397020), (52, 358845), (60, 310999), (65, 287076), (78, 239230), (94, 198510), (130, 143538), (141, 132340), (156, 119615), (188, 99255), (195, 95692), (235, 79404), (260, 71769), (282, 66170), (390, 47846), (470, 39702), (509, 36660), (564, 33085), (611, 30540), (705, 26468), (780, 23923), (940, 19851), (1018, 18330), (1222, 15270), (1410, 13234), (1527, 12220), (1833, 10180), (2036, 9165), (2444, 7635), (2545, 7332), (2820, 6617), (3054, 6110), (3055, 6108), (3666, 5090)]