72671720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 191600640

約数和(自身を除く): 118928920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 43, 44, 46, 55, 86, 88, 92, 110, 115, 167, 172, 184, 215, 220, 230, 253, 334, 344, 430, 440, 460, 473, 506, 668, 835, 860, 920, 946, 989, 1012, 1265, 1336, 1670, 1720, 1837, 1892, 1978, 2024, 2365, 2530, 3340, 3674, 3784, 3841, 3956, 4730, 4945, 5060, 6680, 7181, 7348, 7682, 7912, 9185, 9460, 9890, 10120, 10879, 14362, 14696, 15364, 18370, 18920, 19205, 19780, 21758, 28724, 30728, 35905, 36740, 38410, 39560, 42251, 43516, 54395, 57448, 71810, 73480, 76820, 78991, 84502, 87032, 108790, 143620, 153640, 157982, 165163, 169004, 211255, 217580, 287240, 315964, 330326, 338008, 394955, 422510, 435160, 631928, 660652, 789910, 825815, 845020, 1321304, 1579820, 1651630, 1690040, 1816793, 3159640, 3303260, 3633586, 6606520, 7267172, 9083965, 14534344, 18167930, 36335860, 72671720]

約数ペア:

[(1, 72671720), (2, 36335860), (4, 18167930), (5, 14534344), (8, 9083965), (10, 7267172), (11, 6606520), (20, 3633586), (22, 3303260), (23, 3159640), (40, 1816793), (43, 1690040), (44, 1651630), (46, 1579820), (55, 1321304), (86, 845020), (88, 825815), (92, 789910), (110, 660652), (115, 631928), (167, 435160), (172, 422510), (184, 394955), (215, 338008), (220, 330326), (230, 315964), (253, 287240), (334, 217580), (344, 211255), (430, 169004), (440, 165163), (460, 157982), (473, 153640), (506, 143620), (668, 108790), (835, 87032), (860, 84502), (920, 78991), (946, 76820), (989, 73480), (1012, 71810), (1265, 57448), (1336, 54395), (1670, 43516), (1720, 42251), (1837, 39560), (1892, 38410), (1978, 36740), (2024, 35905), (2365, 30728), (2530, 28724), (3340, 21758), (3674, 19780), (3784, 19205), (3841, 18920), (3956, 18370), (4730, 15364), (4945, 14696), (5060, 14362), (6680, 10879), (7181, 10120), (7348, 9890), (7682, 9460), (7912, 9185)]