20868840

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 74692800

約数和(自身を除く): 53823960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 108, 113, 114, 120, 135, 152, 162, 171, 180, 190, 216, 226, 228, 243, 270, 285, 324, 339, 342, 360, 380, 405, 452, 456, 486, 513, 540, 565, 570, 648, 678, 684, 760, 810, 855, 904, 972, 1017, 1026, 1080, 1130, 1140, 1215, 1356, 1368, 1539, 1620, 1695, 1710, 1944, 2034, 2052, 2147, 2260, 2280, 2430, 2565, 2712, 3051, 3078, 3240, 3390, 3420, 4068, 4104, 4294, 4520, 4617, 4860, 5085, 5130, 6102, 6156, 6441, 6780, 6840, 7695, 8136, 8588, 9153, 9234, 9720, 10170, 10260, 10735, 12204, 12312, 12882, 13560, 15255, 15390, 17176, 18306, 18468, 19323, 20340, 20520, 21470, 23085, 24408, 25764, 27459, 30510, 30780, 32205, 36612, 36936, 38646, 40680, 42940, 45765, 46170, 51528, 54918, 57969, 61020, 61560, 64410, 73224, 77292, 85880, 91530, 92340, 96615, 109836, 115938, 122040, 128820, 137295, 154584, 173907, 183060, 184680, 193230, 219672, 231876, 257640, 274590, 289845, 347814, 366120, 386460, 463752, 521721, 549180, 579690, 695628, 772920, 869535, 1043442, 1098360, 1159380, 1391256, 1739070, 2086884, 2318760, 2608605, 3478140, 4173768, 5217210, 6956280, 10434420, 20868840]

約数ペア:

[(1, 20868840), (2, 10434420), (3, 6956280), (4, 5217210), (5, 4173768), (6, 3478140), (8, 2608605), (9, 2318760), (10, 2086884), (12, 1739070), (15, 1391256), (18, 1159380), (19, 1098360), (20, 1043442), (24, 869535), (27, 772920), (30, 695628), (36, 579690), (38, 549180), (40, 521721), (45, 463752), (54, 386460), (57, 366120), (60, 347814), (72, 289845), (76, 274590), (81, 257640), (90, 231876), (95, 219672), (108, 193230), (113, 184680), (114, 183060), (120, 173907), (135, 154584), (152, 137295), (162, 128820), (171, 122040), (180, 115938), (190, 109836), (216, 96615), (226, 92340), (228, 91530), (243, 85880), (270, 77292), (285, 73224), (324, 64410), (339, 61560), (342, 61020), (360, 57969), (380, 54918), (405, 51528), (452, 46170), (456, 45765), (486, 42940), (513, 40680), (540, 38646), (565, 36936), (570, 36612), (648, 32205), (678, 30780), (684, 30510), (760, 27459), (810, 25764), (855, 24408), (904, 23085), (972, 21470), (1017, 20520), (1026, 20340), (1080, 19323), (1130, 18468), (1140, 18306), (1215, 17176), (1356, 15390), (1368, 15255), (1539, 13560), (1620, 12882), (1695, 12312), (1710, 12204), (1944, 10735), (2034, 10260), (2052, 10170), (2147, 9720), (2260, 9234), (2280, 9153), (2430, 8588), (2565, 8136), (2712, 7695), (3051, 6840), (3078, 6780), (3240, 6441), (3390, 6156), (3420, 6102), (4068, 5130), (4104, 5085), (4294, 4860), (4520, 4617)]