19725930

素因数分解:

$2^1\times 3^4\times 5^1\times 7^3\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 160

約数和(自身を含む): 62726400

約数和(自身を除く): 43000470

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 71, 81, 90, 98, 105, 126, 135, 142, 147, 162, 189, 210, 213, 245, 270, 294, 315, 343, 355, 378, 405, 426, 441, 490, 497, 567, 630, 639, 686, 710, 735, 810, 882, 945, 994, 1029, 1065, 1134, 1278, 1323, 1470, 1491, 1715, 1890, 1917, 2058, 2130, 2205, 2485, 2646, 2835, 2982, 3087, 3195, 3430, 3479, 3834, 3969, 4410, 4473, 4970, 5145, 5670, 5751, 6174, 6390, 6615, 6958, 7455, 7938, 8946, 9261, 9585, 10290, 10437, 11502, 13230, 13419, 14910, 15435, 17395, 18522, 19170, 19845, 20874, 22365, 24353, 26838, 27783, 28755, 30870, 31311, 34790, 39690, 40257, 44730, 46305, 48706, 52185, 55566, 57510, 62622, 67095, 73059, 80514, 92610, 93933, 104370, 121765, 134190, 138915, 146118, 156555, 187866, 201285, 219177, 243530, 277830, 281799, 313110, 365295, 402570, 438354, 469665, 563598, 657531, 730590, 939330, 1095885, 1315062, 1408995, 1972593, 2191770, 2817990, 3287655, 3945186, 6575310, 9862965, 19725930]

約数ペア:

[(1, 19725930), (2, 9862965), (3, 6575310), (5, 3945186), (6, 3287655), (7, 2817990), (9, 2191770), (10, 1972593), (14, 1408995), (15, 1315062), (18, 1095885), (21, 939330), (27, 730590), (30, 657531), (35, 563598), (42, 469665), (45, 438354), (49, 402570), (54, 365295), (63, 313110), (70, 281799), (71, 277830), (81, 243530), (90, 219177), (98, 201285), (105, 187866), (126, 156555), (135, 146118), (142, 138915), (147, 134190), (162, 121765), (189, 104370), (210, 93933), (213, 92610), (245, 80514), (270, 73059), (294, 67095), (315, 62622), (343, 57510), (355, 55566), (378, 52185), (405, 48706), (426, 46305), (441, 44730), (490, 40257), (497, 39690), (567, 34790), (630, 31311), (639, 30870), (686, 28755), (710, 27783), (735, 26838), (810, 24353), (882, 22365), (945, 20874), (994, 19845), (1029, 19170), (1065, 18522), (1134, 17395), (1278, 15435), (1323, 14910), (1470, 13419), (1491, 13230), (1715, 11502), (1890, 10437), (1917, 10290), (2058, 9585), (2130, 9261), (2205, 8946), (2485, 7938), (2646, 7455), (2835, 6958), (2982, 6615), (3087, 6390), (3195, 6174), (3430, 5751), (3479, 5670), (3834, 5145), (3969, 4970), (4410, 4473)]