19627020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 70045248

約数和(自身を除く): 50418228

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 421, 444, 518, 555, 630, 666, 740, 777, 842, 1036, 1110, 1260, 1263, 1295, 1332, 1554, 1665, 1684, 2105, 2220, 2331, 2526, 2590, 2947, 3108, 3330, 3789, 3885, 4210, 4662, 5052, 5180, 5894, 6315, 6660, 7578, 7770, 8420, 8841, 9324, 11655, 11788, 12630, 14735, 15156, 15540, 15577, 17682, 18945, 23310, 25260, 26523, 29470, 31154, 35364, 37890, 44205, 46620, 46731, 53046, 58940, 62308, 75780, 77885, 88410, 93462, 106092, 109039, 132615, 140193, 155770, 176820, 186924, 218078, 233655, 265230, 280386, 311540, 327117, 436156, 467310, 530460, 545195, 560772, 654234, 700965, 934620, 981351, 1090390, 1308468, 1401930, 1635585, 1962702, 2180780, 2803860, 3271170, 3925404, 4906755, 6542340, 9813510, 19627020]

約数ペア:

[(1, 19627020), (2, 9813510), (3, 6542340), (4, 4906755), (5, 3925404), (6, 3271170), (7, 2803860), (9, 2180780), (10, 1962702), (12, 1635585), (14, 1401930), (15, 1308468), (18, 1090390), (20, 981351), (21, 934620), (28, 700965), (30, 654234), (35, 560772), (36, 545195), (37, 530460), (42, 467310), (45, 436156), (60, 327117), (63, 311540), (70, 280386), (74, 265230), (84, 233655), (90, 218078), (105, 186924), (111, 176820), (126, 155770), (140, 140193), (148, 132615), (180, 109039), (185, 106092), (210, 93462), (222, 88410), (252, 77885), (259, 75780), (315, 62308), (333, 58940), (370, 53046), (420, 46731), (421, 46620), (444, 44205), (518, 37890), (555, 35364), (630, 31154), (666, 29470), (740, 26523), (777, 25260), (842, 23310), (1036, 18945), (1110, 17682), (1260, 15577), (1263, 15540), (1295, 15156), (1332, 14735), (1554, 12630), (1665, 11788), (1684, 11655), (2105, 9324), (2220, 8841), (2331, 8420), (2526, 7770), (2590, 7578), (2947, 6660), (3108, 6315), (3330, 5894), (3789, 5180), (3885, 5052), (4210, 4662)]