20861640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{347}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 68402880

約数和(自身を除く): 47541240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 167, 180, 334, 347, 360, 501, 668, 694, 835, 1002, 1041, 1336, 1388, 1503, 1670, 1735, 2004, 2082, 2505, 2776, 3006, 3123, 3340, 3470, 4008, 4164, 5010, 5205, 6012, 6246, 6680, 6940, 7515, 8328, 10020, 10410, 12024, 12492, 13880, 15030, 15615, 20040, 20820, 24984, 30060, 31230, 41640, 57949, 60120, 62460, 115898, 124920, 173847, 231796, 289745, 347694, 463592, 521541, 579490, 695388, 869235, 1043082, 1158980, 1390776, 1738470, 2086164, 2317960, 2607705, 3476940, 4172328, 5215410, 6953880, 10430820, 20861640]

約数ペア:

[(1, 20861640), (2, 10430820), (3, 6953880), (4, 5215410), (5, 4172328), (6, 3476940), (8, 2607705), (9, 2317960), (10, 2086164), (12, 1738470), (15, 1390776), (18, 1158980), (20, 1043082), (24, 869235), (30, 695388), (36, 579490), (40, 521541), (45, 463592), (60, 347694), (72, 289745), (90, 231796), (120, 173847), (167, 124920), (180, 115898), (334, 62460), (347, 60120), (360, 57949), (501, 41640), (668, 31230), (694, 30060), (835, 24984), (1002, 20820), (1041, 20040), (1336, 15615), (1388, 15030), (1503, 13880), (1670, 12492), (1735, 12024), (2004, 10410), (2082, 10020), (2505, 8328), (2776, 7515), (3006, 6940), (3123, 6680), (3340, 6246), (3470, 6012), (4008, 5205), (4164, 5010)]