245697920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29531}}^1$

素因数の和:29563

約数の個数: 64

約数和(自身を含む): 632575440

約数和(自身を除く): 386877520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 29531, 59062, 118124, 147655, 236248, 295310, 383903, 472496, 590620, 767806, 944992, 1181240, 1535612, 1889984, 1919515, 2362480, 3071224, 3779968, 3839030, 4724960, 6142448, 7678060, 9449920, 12284896, 15356120, 18899840, 24569792, 30712240, 49139584, 61424480, 122848960, 245697920]

約数ペア:

[(1, 245697920), (2, 122848960), (4, 61424480), (5, 49139584), (8, 30712240), (10, 24569792), (13, 18899840), (16, 15356120), (20, 12284896), (26, 9449920), (32, 7678060), (40, 6142448), (52, 4724960), (64, 3839030), (65, 3779968), (80, 3071224), (104, 2362480), (128, 1919515), (130, 1889984), (160, 1535612), (208, 1181240), (260, 944992), (320, 767806), (416, 590620), (520, 472496), (640, 383903), (832, 295310), (1040, 236248), (1664, 147655), (2080, 118124), (4160, 59062), (8320, 29531)]