28052440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:836

約数の個数: 64

約数和(自身を含む): 68997600

約数和(自身を除く): 40945160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 739, 949, 1460, 1478, 1898, 2920, 2956, 3695, 3796, 4745, 5912, 7390, 7592, 9490, 9607, 14780, 18980, 19214, 29560, 37960, 38428, 48035, 53947, 76856, 96070, 107894, 192140, 215788, 269735, 384280, 431576, 539470, 701311, 1078940, 1402622, 2157880, 2805244, 3506555, 5610488, 7013110, 14026220, 28052440]

約数ペア:

[(1, 28052440), (2, 14026220), (4, 7013110), (5, 5610488), (8, 3506555), (10, 2805244), (13, 2157880), (20, 1402622), (26, 1078940), (40, 701311), (52, 539470), (65, 431576), (73, 384280), (104, 269735), (130, 215788), (146, 192140), (260, 107894), (292, 96070), (365, 76856), (520, 53947), (584, 48035), (730, 38428), (739, 37960), (949, 29560), (1460, 19214), (1478, 18980), (1898, 14780), (2920, 9607), (2956, 9490), (3695, 7592), (3796, 7390), (4745, 5912)]