28930720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2022

約数の個数: 96

約数和(自身を含む): 84163968

約数和(自身を除く): 55233248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 1987, 2080, 2912, 3640, 3974, 7280, 7948, 9935, 13909, 14560, 15896, 19870, 25831, 27818, 31792, 39740, 51662, 55636, 63584, 69545, 79480, 103324, 111272, 129155, 139090, 158960, 180817, 206648, 222544, 258310, 278180, 317920, 361634, 413296, 445088, 516620, 556360, 723268, 826592, 904085, 1033240, 1112720, 1446536, 1808170, 2066480, 2225440, 2893072, 3616340, 4132960, 5786144, 7232680, 14465360, 28930720]

約数ペア:

[(1, 28930720), (2, 14465360), (4, 7232680), (5, 5786144), (7, 4132960), (8, 3616340), (10, 2893072), (13, 2225440), (14, 2066480), (16, 1808170), (20, 1446536), (26, 1112720), (28, 1033240), (32, 904085), (35, 826592), (40, 723268), (52, 556360), (56, 516620), (65, 445088), (70, 413296), (80, 361634), (91, 317920), (104, 278180), (112, 258310), (130, 222544), (140, 206648), (160, 180817), (182, 158960), (208, 139090), (224, 129155), (260, 111272), (280, 103324), (364, 79480), (416, 69545), (455, 63584), (520, 55636), (560, 51662), (728, 39740), (910, 31792), (1040, 27818), (1120, 25831), (1456, 19870), (1820, 15896), (1987, 14560), (2080, 13909), (2912, 9935), (3640, 7948), (3974, 7280)]