31831384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 68796000

約数和(自身を除く): 36964616

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 89, 104, 152, 178, 181, 247, 356, 362, 494, 712, 724, 988, 1157, 1448, 1691, 1976, 2314, 2353, 3382, 3439, 4628, 4706, 6764, 6878, 9256, 9412, 13528, 13756, 16109, 18824, 21983, 27512, 32218, 43966, 44707, 64436, 87932, 89414, 128872, 175864, 178828, 209417, 306071, 357656, 418834, 612142, 837668, 1224284, 1675336, 2448568, 3978923, 7957846, 15915692, 31831384]

約数ペア:

[(1, 31831384), (2, 15915692), (4, 7957846), (8, 3978923), (13, 2448568), (19, 1675336), (26, 1224284), (38, 837668), (52, 612142), (76, 418834), (89, 357656), (104, 306071), (152, 209417), (178, 178828), (181, 175864), (247, 128872), (356, 89414), (362, 87932), (494, 64436), (712, 44707), (724, 43966), (988, 32218), (1157, 27512), (1448, 21983), (1691, 18824), (1976, 16109), (2314, 13756), (2353, 13528), (3382, 9412), (3439, 9256), (4628, 6878), (4706, 6764)]