78389820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22921}}^1$

素因数の和:22955

約数の個数: 72

約数和(自身を含む): 250308240

約数和(自身を除く): 171918420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 22921, 45842, 68763, 91684, 114605, 137526, 206289, 229210, 275052, 343815, 412578, 435499, 458420, 687630, 825156, 870998, 1031445, 1306497, 1375260, 1741996, 2062890, 2177495, 2612994, 3919491, 4125780, 4354990, 5225988, 6532485, 7838982, 8709980, 13064970, 15677964, 19597455, 26129940, 39194910, 78389820]

約数ペア:

[(1, 78389820), (2, 39194910), (3, 26129940), (4, 19597455), (5, 15677964), (6, 13064970), (9, 8709980), (10, 7838982), (12, 6532485), (15, 5225988), (18, 4354990), (19, 4125780), (20, 3919491), (30, 2612994), (36, 2177495), (38, 2062890), (45, 1741996), (57, 1375260), (60, 1306497), (76, 1031445), (90, 870998), (95, 825156), (114, 687630), (171, 458420), (180, 435499), (190, 412578), (228, 343815), (285, 275052), (342, 229210), (380, 206289), (570, 137526), (684, 114605), (855, 91684), (1140, 68763), (1710, 45842), (3420, 22921)]