20320560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 180

約数和(自身を含む): 74338992

約数和(自身を除く): 54018432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 167, 169, 180, 195, 208, 234, 240, 260, 312, 334, 338, 360, 390, 468, 501, 507, 520, 585, 624, 668, 676, 720, 780, 835, 845, 936, 1002, 1014, 1040, 1170, 1336, 1352, 1503, 1521, 1560, 1670, 1690, 1872, 2004, 2028, 2171, 2340, 2505, 2535, 2672, 2704, 3006, 3042, 3120, 3340, 3380, 4008, 4056, 4342, 4680, 5010, 5070, 6012, 6084, 6513, 6680, 6760, 7515, 7605, 8016, 8112, 8684, 9360, 10020, 10140, 10855, 12024, 12168, 13026, 13360, 13520, 15030, 15210, 17368, 19539, 20040, 20280, 21710, 24048, 24336, 26052, 28223, 30060, 30420, 32565, 34736, 39078, 40080, 40560, 43420, 52104, 56446, 60120, 60840, 65130, 78156, 84669, 86840, 97695, 104208, 112892, 120240, 121680, 130260, 141115, 156312, 169338, 173680, 195390, 225784, 254007, 260520, 282230, 312624, 338676, 390780, 423345, 451568, 508014, 521040, 564460, 677352, 781560, 846690, 1016028, 1128920, 1270035, 1354704, 1563120, 1693380, 2032056, 2257840, 2540070, 3386760, 4064112, 5080140, 6773520, 10160280, 20320560]

約数ペア:

[(1, 20320560), (2, 10160280), (3, 6773520), (4, 5080140), (5, 4064112), (6, 3386760), (8, 2540070), (9, 2257840), (10, 2032056), (12, 1693380), (13, 1563120), (15, 1354704), (16, 1270035), (18, 1128920), (20, 1016028), (24, 846690), (26, 781560), (30, 677352), (36, 564460), (39, 521040), (40, 508014), (45, 451568), (48, 423345), (52, 390780), (60, 338676), (65, 312624), (72, 282230), (78, 260520), (80, 254007), (90, 225784), (104, 195390), (117, 173680), (120, 169338), (130, 156312), (144, 141115), (156, 130260), (167, 121680), (169, 120240), (180, 112892), (195, 104208), (208, 97695), (234, 86840), (240, 84669), (260, 78156), (312, 65130), (334, 60840), (338, 60120), (360, 56446), (390, 52104), (468, 43420), (501, 40560), (507, 40080), (520, 39078), (585, 34736), (624, 32565), (668, 30420), (676, 30060), (720, 28223), (780, 26052), (835, 24336), (845, 24048), (936, 21710), (1002, 20280), (1014, 20040), (1040, 19539), (1170, 17368), (1336, 15210), (1352, 15030), (1503, 13520), (1521, 13360), (1560, 13026), (1670, 12168), (1690, 12024), (1872, 10855), (2004, 10140), (2028, 10020), (2171, 9360), (2340, 8684), (2505, 8112), (2535, 8016), (2672, 7605), (2704, 7515), (3006, 6760), (3042, 6680), (3120, 6513), (3340, 6084), (3380, 6012), (4008, 5070), (4056, 5010), (4342, 4680)]