203927440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 492468480

約数和(自身を除く): 288541040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 158, 164, 205, 316, 328, 395, 410, 632, 656, 787, 790, 820, 1264, 1574, 1580, 1640, 3148, 3160, 3239, 3280, 3935, 6296, 6320, 6478, 7870, 12592, 12956, 15740, 16195, 25912, 31480, 32267, 32390, 51824, 62173, 62960, 64534, 64780, 124346, 129068, 129560, 161335, 248692, 258136, 259120, 310865, 322670, 497384, 516272, 621730, 645340, 994768, 1243460, 1290680, 2486920, 2549093, 2581360, 4973840, 5098186, 10196372, 12745465, 20392744, 25490930, 40785488, 50981860, 101963720, 203927440]

約数ペア:

[(1, 203927440), (2, 101963720), (4, 50981860), (5, 40785488), (8, 25490930), (10, 20392744), (16, 12745465), (20, 10196372), (40, 5098186), (41, 4973840), (79, 2581360), (80, 2549093), (82, 2486920), (158, 1290680), (164, 1243460), (205, 994768), (316, 645340), (328, 621730), (395, 516272), (410, 497384), (632, 322670), (656, 310865), (787, 259120), (790, 258136), (820, 248692), (1264, 161335), (1574, 129560), (1580, 129068), (1640, 124346), (3148, 64780), (3160, 64534), (3239, 62960), (3280, 62173), (3935, 51824), (6296, 32390), (6320, 32267), (6478, 31480), (7870, 25912), (12592, 16195), (12956, 15740)]