70221520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 169989120

約数和(自身を除く): 99767600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 158, 164, 205, 271, 316, 328, 395, 410, 542, 632, 656, 790, 820, 1084, 1264, 1355, 1580, 1640, 2168, 2710, 3160, 3239, 3280, 4336, 5420, 6320, 6478, 10840, 11111, 12956, 16195, 21409, 21680, 22222, 25912, 32390, 42818, 44444, 51824, 55555, 64780, 85636, 88888, 107045, 111110, 129560, 171272, 177776, 214090, 222220, 259120, 342544, 428180, 444440, 856360, 877769, 888880, 1712720, 1755538, 3511076, 4388845, 7022152, 8777690, 14044304, 17555380, 35110760, 70221520]

約数ペア:

[(1, 70221520), (2, 35110760), (4, 17555380), (5, 14044304), (8, 8777690), (10, 7022152), (16, 4388845), (20, 3511076), (40, 1755538), (41, 1712720), (79, 888880), (80, 877769), (82, 856360), (158, 444440), (164, 428180), (205, 342544), (271, 259120), (316, 222220), (328, 214090), (395, 177776), (410, 171272), (542, 129560), (632, 111110), (656, 107045), (790, 88888), (820, 85636), (1084, 64780), (1264, 55555), (1355, 51824), (1580, 44444), (1640, 42818), (2168, 32390), (2710, 25912), (3160, 22222), (3239, 21680), (3280, 21409), (4336, 16195), (5420, 12956), (6320, 11111), (6478, 10840)]