304993990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:757

約数の個数: 64

約数和(自身を含む): 643230720

約数和(自身を除く): 338236730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 109, 142, 218, 355, 497, 545, 563, 710, 763, 994, 1090, 1126, 1526, 2485, 2815, 3815, 3941, 4970, 5630, 7630, 7739, 7882, 15478, 19705, 38695, 39410, 39973, 54173, 61367, 77390, 79946, 108346, 122734, 199865, 270865, 279811, 306835, 399730, 429569, 541730, 559622, 613670, 859138, 1399055, 2147845, 2798110, 4295690, 4357057, 8714114, 21785285, 30499399, 43570570, 60998798, 152496995, 304993990]

約数ペア:

[(1, 304993990), (2, 152496995), (5, 60998798), (7, 43570570), (10, 30499399), (14, 21785285), (35, 8714114), (70, 4357057), (71, 4295690), (109, 2798110), (142, 2147845), (218, 1399055), (355, 859138), (497, 613670), (545, 559622), (563, 541730), (710, 429569), (763, 399730), (994, 306835), (1090, 279811), (1126, 270865), (1526, 199865), (2485, 122734), (2815, 108346), (3815, 79946), (3941, 77390), (4970, 61367), (5630, 54173), (7630, 39973), (7739, 39410), (7882, 38695), (15478, 19705)]