20902112

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:544

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 33529888

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 224, 238, 272, 308, 352, 374, 476, 499, 544, 616, 748, 952, 998, 1232, 1309, 1496, 1904, 1996, 2464, 2618, 2992, 3493, 3808, 3992, 5236, 5489, 5984, 6986, 7984, 8483, 10472, 10978, 13972, 15968, 16966, 20944, 21956, 27944, 33932, 38423, 41888, 43912, 55888, 59381, 67864, 76846, 87824, 93313, 111776, 118762, 135728, 153692, 175648, 186626, 237524, 271456, 307384, 373252, 475048, 614768, 653191, 746504, 950096, 1229536, 1306382, 1493008, 1900192, 2612764, 2986016, 5225528, 10451056, 20902112]

約数ペア:

[(1, 20902112), (2, 10451056), (4, 5225528), (7, 2986016), (8, 2612764), (11, 1900192), (14, 1493008), (16, 1306382), (17, 1229536), (22, 950096), (28, 746504), (32, 653191), (34, 614768), (44, 475048), (56, 373252), (68, 307384), (77, 271456), (88, 237524), (112, 186626), (119, 175648), (136, 153692), (154, 135728), (176, 118762), (187, 111776), (224, 93313), (238, 87824), (272, 76846), (308, 67864), (352, 59381), (374, 55888), (476, 43912), (499, 41888), (544, 38423), (616, 33932), (748, 27944), (952, 21956), (998, 20944), (1232, 16966), (1309, 15968), (1496, 13972), (1904, 10978), (1996, 10472), (2464, 8483), (2618, 7984), (2992, 6986), (3493, 5984), (3808, 5489), (3992, 5236)]