28812420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1759}}^1$

素因数の和:1794

約数の個数: 144

約数和(自身を含む): 107627520

約数和(自身を除く): 78815100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1759, 1820, 2340, 2730, 3276, 3518, 4095, 5277, 5460, 7036, 8190, 8795, 10554, 12313, 15831, 16380, 17590, 21108, 22867, 24626, 26385, 31662, 35180, 36939, 45734, 49252, 52770, 61565, 63324, 68601, 73878, 79155, 91468, 105540, 110817, 114335, 123130, 137202, 147756, 158310, 160069, 184695, 205803, 221634, 228670, 246260, 274404, 316620, 320138, 343005, 369390, 411606, 443268, 457340, 480207, 554085, 640276, 686010, 738780, 800345, 823212, 960414, 1029015, 1108170, 1372020, 1440621, 1600690, 1920828, 2058030, 2216340, 2401035, 2881242, 3201380, 4116060, 4802070, 5762484, 7203105, 9604140, 14406210, 28812420]

約数ペア:

[(1, 28812420), (2, 14406210), (3, 9604140), (4, 7203105), (5, 5762484), (6, 4802070), (7, 4116060), (9, 3201380), (10, 2881242), (12, 2401035), (13, 2216340), (14, 2058030), (15, 1920828), (18, 1600690), (20, 1440621), (21, 1372020), (26, 1108170), (28, 1029015), (30, 960414), (35, 823212), (36, 800345), (39, 738780), (42, 686010), (45, 640276), (52, 554085), (60, 480207), (63, 457340), (65, 443268), (70, 411606), (78, 369390), (84, 343005), (90, 320138), (91, 316620), (105, 274404), (117, 246260), (126, 228670), (130, 221634), (140, 205803), (156, 184695), (180, 160069), (182, 158310), (195, 147756), (210, 137202), (234, 123130), (252, 114335), (260, 110817), (273, 105540), (315, 91468), (364, 79155), (390, 73878), (420, 68601), (455, 63324), (468, 61565), (546, 52770), (585, 49252), (630, 45734), (780, 36939), (819, 35180), (910, 31662), (1092, 26385), (1170, 24626), (1260, 22867), (1365, 21108), (1638, 17590), (1759, 16380), (1820, 15831), (2340, 12313), (2730, 10554), (3276, 8795), (3518, 8190), (4095, 7036), (5277, 5460)]