20005776

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:333

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 44990064

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 89, 112, 126, 144, 168, 178, 223, 252, 267, 336, 356, 446, 504, 534, 623, 669, 712, 801, 892, 1008, 1068, 1246, 1338, 1424, 1561, 1602, 1784, 1869, 2007, 2136, 2492, 2676, 3122, 3204, 3568, 3738, 4014, 4272, 4683, 4984, 5352, 5607, 6244, 6408, 7476, 8028, 9366, 9968, 10704, 11214, 12488, 12816, 14049, 14952, 16056, 18732, 19847, 22428, 24976, 28098, 29904, 32112, 37464, 39694, 44856, 56196, 59541, 74928, 79388, 89712, 112392, 119082, 138929, 158776, 178623, 224784, 238164, 277858, 317552, 357246, 416787, 476328, 555716, 714492, 833574, 952656, 1111432, 1250361, 1428984, 1667148, 2222864, 2500722, 2857968, 3334296, 5001444, 6668592, 10002888, 20005776]

約数ペア:

[(1, 20005776), (2, 10002888), (3, 6668592), (4, 5001444), (6, 3334296), (7, 2857968), (8, 2500722), (9, 2222864), (12, 1667148), (14, 1428984), (16, 1250361), (18, 1111432), (21, 952656), (24, 833574), (28, 714492), (36, 555716), (42, 476328), (48, 416787), (56, 357246), (63, 317552), (72, 277858), (84, 238164), (89, 224784), (112, 178623), (126, 158776), (144, 138929), (168, 119082), (178, 112392), (223, 89712), (252, 79388), (267, 74928), (336, 59541), (356, 56196), (446, 44856), (504, 39694), (534, 37464), (623, 32112), (669, 29904), (712, 28098), (801, 24976), (892, 22428), (1008, 19847), (1068, 18732), (1246, 16056), (1338, 14952), (1424, 14049), (1561, 12816), (1602, 12488), (1784, 11214), (1869, 10704), (2007, 9968), (2136, 9366), (2492, 8028), (2676, 7476), (3122, 6408), (3204, 6244), (3568, 5607), (3738, 5352), (4014, 4984), (4272, 4683)]