19561920

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 224

約数和(自身を含む): 73737216

約数和(自身を除く): 54175296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 41, 42, 48, 56, 60, 64, 70, 71, 80, 82, 84, 96, 105, 112, 120, 123, 140, 142, 160, 164, 168, 192, 205, 210, 213, 224, 240, 246, 280, 284, 287, 320, 328, 336, 355, 410, 420, 426, 448, 480, 492, 497, 560, 568, 574, 615, 656, 672, 710, 820, 840, 852, 861, 960, 984, 994, 1065, 1120, 1136, 1148, 1230, 1312, 1344, 1420, 1435, 1491, 1640, 1680, 1704, 1722, 1968, 1988, 2130, 2240, 2272, 2296, 2460, 2485, 2624, 2840, 2870, 2911, 2982, 3280, 3360, 3408, 3444, 3936, 3976, 4260, 4305, 4544, 4592, 4920, 4970, 5680, 5740, 5822, 5964, 6560, 6720, 6816, 6888, 7455, 7872, 7952, 8520, 8610, 8733, 9184, 9840, 9940, 11360, 11480, 11644, 11928, 13120, 13632, 13776, 14555, 14910, 15904, 17040, 17220, 17466, 18368, 19680, 19880, 20377, 22720, 22960, 23288, 23856, 27552, 29110, 29820, 31808, 34080, 34440, 34932, 39360, 39760, 40754, 43665, 45920, 46576, 47712, 55104, 58220, 59640, 61131, 68160, 68880, 69864, 79520, 81508, 87330, 91840, 93152, 95424, 101885, 116440, 119280, 122262, 137760, 139728, 159040, 163016, 174660, 186304, 203770, 232880, 238560, 244524, 275520, 279456, 305655, 326032, 349320, 407540, 465760, 477120, 489048, 558912, 611310, 652064, 698640, 815080, 931520, 978096, 1222620, 1304128, 1397280, 1630160, 1956192, 2445240, 2794560, 3260320, 3912384, 4890480, 6520640, 9780960, 19561920]

約数ペア:

[(1, 19561920), (2, 9780960), (3, 6520640), (4, 4890480), (5, 3912384), (6, 3260320), (7, 2794560), (8, 2445240), (10, 1956192), (12, 1630160), (14, 1397280), (15, 1304128), (16, 1222620), (20, 978096), (21, 931520), (24, 815080), (28, 698640), (30, 652064), (32, 611310), (35, 558912), (40, 489048), (41, 477120), (42, 465760), (48, 407540), (56, 349320), (60, 326032), (64, 305655), (70, 279456), (71, 275520), (80, 244524), (82, 238560), (84, 232880), (96, 203770), (105, 186304), (112, 174660), (120, 163016), (123, 159040), (140, 139728), (142, 137760), (160, 122262), (164, 119280), (168, 116440), (192, 101885), (205, 95424), (210, 93152), (213, 91840), (224, 87330), (240, 81508), (246, 79520), (280, 69864), (284, 68880), (287, 68160), (320, 61131), (328, 59640), (336, 58220), (355, 55104), (410, 47712), (420, 46576), (426, 45920), (448, 43665), (480, 40754), (492, 39760), (497, 39360), (560, 34932), (568, 34440), (574, 34080), (615, 31808), (656, 29820), (672, 29110), (710, 27552), (820, 23856), (840, 23288), (852, 22960), (861, 22720), (960, 20377), (984, 19880), (994, 19680), (1065, 18368), (1120, 17466), (1136, 17220), (1148, 17040), (1230, 15904), (1312, 14910), (1344, 14555), (1420, 13776), (1435, 13632), (1491, 13120), (1640, 11928), (1680, 11644), (1704, 11480), (1722, 11360), (1968, 9940), (1988, 9840), (2130, 9184), (2240, 8733), (2272, 8610), (2296, 8520), (2460, 7952), (2485, 7872), (2624, 7455), (2840, 6888), (2870, 6816), (2911, 6720), (2982, 6560), (3280, 5964), (3360, 5822), (3408, 5740), (3444, 5680), (3936, 4970), (3976, 4920), (4260, 4592), (4305, 4544)]