998356240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:621

約数の個数: 160

約数和(自身を含む): 2765537280

約数和(自身を除く): 1767181040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 131, 140, 155, 217, 248, 262, 280, 310, 434, 439, 496, 524, 560, 620, 655, 868, 878, 917, 1048, 1085, 1240, 1310, 1736, 1756, 1834, 2096, 2170, 2195, 2480, 2620, 3073, 3472, 3512, 3668, 4061, 4340, 4390, 4585, 5240, 6146, 7024, 7336, 8122, 8680, 8780, 9170, 10480, 12292, 13609, 14672, 15365, 16244, 17360, 17560, 18340, 20305, 24584, 27218, 28427, 30730, 32488, 35120, 36680, 40610, 49168, 54436, 56854, 57509, 61460, 64976, 68045, 73360, 81220, 95263, 108872, 113708, 115018, 122920, 136090, 142135, 162440, 190526, 217744, 227416, 230036, 245840, 272180, 284270, 287545, 324880, 381052, 402563, 454832, 460072, 476315, 544360, 568540, 575090, 762104, 805126, 920144, 952630, 1088720, 1137080, 1150180, 1524208, 1610252, 1782779, 1905260, 2012815, 2274160, 2300360, 3220504, 3565558, 3810520, 4025630, 4600720, 6441008, 7131116, 7621040, 8051260, 8913895, 12479453, 14262232, 16102520, 17827790, 24958906, 28524464, 32205040, 35655580, 49917812, 62397265, 71311160, 99835624, 124794530, 142622320, 199671248, 249589060, 499178120, 998356240]

約数ペア:

[(1, 998356240), (2, 499178120), (4, 249589060), (5, 199671248), (7, 142622320), (8, 124794530), (10, 99835624), (14, 71311160), (16, 62397265), (20, 49917812), (28, 35655580), (31, 32205040), (35, 28524464), (40, 24958906), (56, 17827790), (62, 16102520), (70, 14262232), (80, 12479453), (112, 8913895), (124, 8051260), (131, 7621040), (140, 7131116), (155, 6441008), (217, 4600720), (248, 4025630), (262, 3810520), (280, 3565558), (310, 3220504), (434, 2300360), (439, 2274160), (496, 2012815), (524, 1905260), (560, 1782779), (620, 1610252), (655, 1524208), (868, 1150180), (878, 1137080), (917, 1088720), (1048, 952630), (1085, 920144), (1240, 805126), (1310, 762104), (1736, 575090), (1756, 568540), (1834, 544360), (2096, 476315), (2170, 460072), (2195, 454832), (2480, 402563), (2620, 381052), (3073, 324880), (3472, 287545), (3512, 284270), (3668, 272180), (4061, 245840), (4340, 230036), (4390, 227416), (4585, 217744), (5240, 190526), (6146, 162440), (7024, 142135), (7336, 136090), (8122, 122920), (8680, 115018), (8780, 113708), (9170, 108872), (10480, 95263), (12292, 81220), (13609, 73360), (14672, 68045), (15365, 64976), (16244, 61460), (17360, 57509), (17560, 56854), (18340, 54436), (20305, 49168), (24584, 40610), (27218, 36680), (28427, 35120), (30730, 32488)]