263158480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3203}}^1$

素因数の和:3308

約数の個数: 80

約数和(自身を含む): 667457280

約数和(自身を除く): 404298800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 2054, 3160, 3203, 4108, 5135, 6320, 6406, 8216, 10270, 12812, 16015, 16432, 20540, 25624, 32030, 41080, 41639, 51248, 64060, 82160, 83278, 128120, 166556, 208195, 253037, 256240, 333112, 416390, 506074, 666224, 832780, 1012148, 1265185, 1665560, 2024296, 2530370, 3289481, 3331120, 4048592, 5060740, 6578962, 10121480, 13157924, 16447405, 20242960, 26315848, 32894810, 52631696, 65789620, 131579240, 263158480]

約数ペア:

[(1, 263158480), (2, 131579240), (4, 65789620), (5, 52631696), (8, 32894810), (10, 26315848), (13, 20242960), (16, 16447405), (20, 13157924), (26, 10121480), (40, 6578962), (52, 5060740), (65, 4048592), (79, 3331120), (80, 3289481), (104, 2530370), (130, 2024296), (158, 1665560), (208, 1265185), (260, 1012148), (316, 832780), (395, 666224), (520, 506074), (632, 416390), (790, 333112), (1027, 256240), (1040, 253037), (1264, 208195), (1580, 166556), (2054, 128120), (3160, 83278), (3203, 82160), (4108, 64060), (5135, 51248), (6320, 41639), (6406, 41080), (8216, 32030), (10270, 25624), (12812, 20540), (16015, 16432)]