20434890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 128

約数和(自身を含む): 60014592

約数和(自身を除く): 39579702

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 43, 62, 70, 73, 86, 93, 105, 129, 146, 155, 186, 210, 215, 217, 219, 258, 301, 310, 365, 430, 434, 438, 465, 511, 602, 645, 651, 730, 903, 930, 1022, 1085, 1095, 1290, 1302, 1333, 1505, 1533, 1806, 2170, 2190, 2263, 2555, 2666, 3010, 3066, 3139, 3255, 3999, 4515, 4526, 5110, 6278, 6510, 6665, 6789, 7665, 7998, 9030, 9331, 9417, 11315, 13330, 13578, 15330, 15695, 15841, 18662, 18834, 19995, 21973, 22630, 27993, 31390, 31682, 33945, 39990, 43946, 46655, 47085, 47523, 55986, 65919, 67890, 79205, 93310, 94170, 95046, 97309, 109865, 131838, 139965, 158410, 194618, 219730, 237615, 279930, 291927, 329595, 475230, 486545, 583854, 659190, 681163, 973090, 1362326, 1459635, 2043489, 2919270, 3405815, 4086978, 6811630, 10217445, 20434890]

約数ペア:

[(1, 20434890), (2, 10217445), (3, 6811630), (5, 4086978), (6, 3405815), (7, 2919270), (10, 2043489), (14, 1459635), (15, 1362326), (21, 973090), (30, 681163), (31, 659190), (35, 583854), (42, 486545), (43, 475230), (62, 329595), (70, 291927), (73, 279930), (86, 237615), (93, 219730), (105, 194618), (129, 158410), (146, 139965), (155, 131838), (186, 109865), (210, 97309), (215, 95046), (217, 94170), (219, 93310), (258, 79205), (301, 67890), (310, 65919), (365, 55986), (430, 47523), (434, 47085), (438, 46655), (465, 43946), (511, 39990), (602, 33945), (645, 31682), (651, 31390), (730, 27993), (903, 22630), (930, 21973), (1022, 19995), (1085, 18834), (1095, 18662), (1290, 15841), (1302, 15695), (1333, 15330), (1505, 13578), (1533, 13330), (1806, 11315), (2170, 9417), (2190, 9331), (2263, 9030), (2555, 7998), (2666, 7665), (3010, 6789), (3066, 6665), (3139, 6510), (3255, 6278), (3999, 5110), (4515, 4526)]