164420680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3229}}^1$

素因数の和:3326

約数の個数: 64

約数和(自身を含む): 395352000

約数和(自身を除く): 230931320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 380, 536, 670, 760, 1273, 1340, 2546, 2680, 3229, 5092, 6365, 6458, 10184, 12730, 12916, 16145, 25460, 25832, 32290, 50920, 61351, 64580, 122702, 129160, 216343, 245404, 306755, 432686, 490808, 613510, 865372, 1081715, 1227020, 1730744, 2163430, 2454040, 4110517, 4326860, 8221034, 8653720, 16442068, 20552585, 32884136, 41105170, 82210340, 164420680]

約数ペア:

[(1, 164420680), (2, 82210340), (4, 41105170), (5, 32884136), (8, 20552585), (10, 16442068), (19, 8653720), (20, 8221034), (38, 4326860), (40, 4110517), (67, 2454040), (76, 2163430), (95, 1730744), (134, 1227020), (152, 1081715), (190, 865372), (268, 613510), (335, 490808), (380, 432686), (536, 306755), (670, 245404), (760, 216343), (1273, 129160), (1340, 122702), (2546, 64580), (2680, 61351), (3229, 50920), (5092, 32290), (6365, 25832), (6458, 25460), (10184, 16145), (12730, 12916)]