31380970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 32485910

約数列:

[1, 2, 5, 10, 19, 23, 38, 43, 46, 86, 95, 115, 167, 190, 215, 230, 334, 430, 437, 817, 835, 874, 989, 1634, 1670, 1978, 2185, 3173, 3841, 4085, 4370, 4945, 6346, 7181, 7682, 8170, 9890, 14362, 15865, 18791, 19205, 31730, 35905, 37582, 38410, 71810, 72979, 93955, 136439, 145958, 165163, 187910, 272878, 330326, 364895, 682195, 729790, 825815, 1364390, 1651630, 3138097, 6276194, 15690485, 31380970]

約数ペア:

[(1, 31380970), (2, 15690485), (5, 6276194), (10, 3138097), (19, 1651630), (23, 1364390), (38, 825815), (43, 729790), (46, 682195), (86, 364895), (95, 330326), (115, 272878), (167, 187910), (190, 165163), (215, 145958), (230, 136439), (334, 93955), (430, 72979), (437, 71810), (817, 38410), (835, 37582), (874, 35905), (989, 31730), (1634, 19205), (1670, 18791), (1978, 15865), (2185, 14362), (3173, 9890), (3841, 8170), (4085, 7682), (4370, 7181), (4945, 6346)]