202012720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27749}}^1$

素因数の和:27782

約数の個数: 80

約数和(自身を含む): 578088000

約数和(自身を除く): 376075280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 27749, 55498, 110996, 138745, 194243, 221992, 277490, 360737, 388486, 443984, 554980, 721474, 776972, 971215, 1109960, 1442948, 1553944, 1803685, 1942430, 2219920, 2525159, 2885896, 3107888, 3607370, 3884860, 5050318, 5771792, 7214740, 7769720, 10100636, 12625795, 14429480, 15539440, 20201272, 25251590, 28858960, 40402544, 50503180, 101006360, 202012720]

約数ペア:

[(1, 202012720), (2, 101006360), (4, 50503180), (5, 40402544), (7, 28858960), (8, 25251590), (10, 20201272), (13, 15539440), (14, 14429480), (16, 12625795), (20, 10100636), (26, 7769720), (28, 7214740), (35, 5771792), (40, 5050318), (52, 3884860), (56, 3607370), (65, 3107888), (70, 2885896), (80, 2525159), (91, 2219920), (104, 1942430), (112, 1803685), (130, 1553944), (140, 1442948), (182, 1109960), (208, 971215), (260, 776972), (280, 721474), (364, 554980), (455, 443984), (520, 388486), (560, 360737), (728, 277490), (910, 221992), (1040, 194243), (1456, 138745), (1820, 110996), (3640, 55498), (7280, 27749)]