20279840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:994

約数の個数: 96

約数和(自身を含む): 57697920

約数和(自身を除く): 37418080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 953, 1064, 1120, 1330, 1520, 1906, 2128, 2660, 3040, 3812, 4256, 4765, 5320, 6671, 7624, 9530, 10640, 13342, 15248, 18107, 19060, 21280, 26684, 30496, 33355, 36214, 38120, 53368, 66710, 72428, 76240, 90535, 106736, 126749, 133420, 144856, 152480, 181070, 213472, 253498, 266840, 289712, 362140, 506996, 533680, 579424, 633745, 724280, 1013992, 1067360, 1267490, 1448560, 2027984, 2534980, 2897120, 4055968, 5069960, 10139920, 20279840]

約数ペア:

[(1, 20279840), (2, 10139920), (4, 5069960), (5, 4055968), (7, 2897120), (8, 2534980), (10, 2027984), (14, 1448560), (16, 1267490), (19, 1067360), (20, 1013992), (28, 724280), (32, 633745), (35, 579424), (38, 533680), (40, 506996), (56, 362140), (70, 289712), (76, 266840), (80, 253498), (95, 213472), (112, 181070), (133, 152480), (140, 144856), (152, 133420), (160, 126749), (190, 106736), (224, 90535), (266, 76240), (280, 72428), (304, 66710), (380, 53368), (532, 38120), (560, 36214), (608, 33355), (665, 30496), (760, 26684), (953, 21280), (1064, 19060), (1120, 18107), (1330, 15248), (1520, 13342), (1906, 10640), (2128, 9530), (2660, 7624), (3040, 6671), (3812, 5320), (4256, 4765)]