156931840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9431}}^1$

素因数の和:9465

約数の個数: 72

約数和(自身を含む): 404859168

約数和(自身を除く): 247927328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 9431, 16640, 18862, 37724, 47155, 75448, 94310, 122603, 150896, 188620, 245206, 301792, 377240, 490412, 603584, 613015, 754480, 980824, 1207168, 1226030, 1508960, 1961648, 2414336, 2452060, 3017920, 3923296, 4904120, 6035840, 7846592, 9808240, 12071680, 15693184, 19616480, 31386368, 39232960, 78465920, 156931840]

約数ペア:

[(1, 156931840), (2, 78465920), (4, 39232960), (5, 31386368), (8, 19616480), (10, 15693184), (13, 12071680), (16, 9808240), (20, 7846592), (26, 6035840), (32, 4904120), (40, 3923296), (52, 3017920), (64, 2452060), (65, 2414336), (80, 1961648), (104, 1508960), (128, 1226030), (130, 1207168), (160, 980824), (208, 754480), (256, 613015), (260, 603584), (320, 490412), (416, 377240), (520, 301792), (640, 245206), (832, 188620), (1040, 150896), (1280, 122603), (1664, 94310), (2080, 75448), (3328, 47155), (4160, 37724), (8320, 18862), (9431, 16640)]