61315720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 141886080

約数和(自身を除く): 80570360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 137, 167, 268, 274, 334, 335, 536, 548, 668, 670, 685, 835, 1096, 1336, 1340, 1370, 1670, 2680, 2740, 3340, 5480, 6680, 9179, 11189, 18358, 22378, 22879, 36716, 44756, 45758, 45895, 55945, 73432, 89512, 91516, 91790, 111890, 114395, 183032, 183580, 223780, 228790, 367160, 447560, 457580, 915160, 1532893, 3065786, 6131572, 7664465, 12263144, 15328930, 30657860, 61315720]

約数ペア:

[(1, 61315720), (2, 30657860), (4, 15328930), (5, 12263144), (8, 7664465), (10, 6131572), (20, 3065786), (40, 1532893), (67, 915160), (134, 457580), (137, 447560), (167, 367160), (268, 228790), (274, 223780), (334, 183580), (335, 183032), (536, 114395), (548, 111890), (668, 91790), (670, 91516), (685, 89512), (835, 73432), (1096, 55945), (1336, 45895), (1340, 45758), (1370, 44756), (1670, 36716), (2680, 22879), (2740, 22378), (3340, 18358), (5480, 11189), (6680, 9179)]