388619320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 969978240

約数和(自身を除く): 581358920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 53, 68, 82, 85, 106, 136, 164, 170, 205, 212, 263, 265, 328, 340, 410, 424, 526, 530, 680, 697, 820, 901, 1052, 1060, 1315, 1394, 1640, 1802, 2104, 2120, 2173, 2630, 2788, 3485, 3604, 4346, 4471, 4505, 5260, 5576, 6970, 7208, 8692, 8942, 9010, 10520, 10783, 10865, 13939, 13940, 17384, 17884, 18020, 21566, 21730, 22355, 27878, 27880, 35768, 36040, 36941, 43132, 43460, 44710, 53915, 55756, 69695, 73882, 86264, 86920, 89420, 107830, 111512, 139390, 147764, 178840, 183311, 184705, 215660, 236963, 278780, 295528, 366622, 369410, 431320, 473926, 557560, 571499, 733244, 738820, 916555, 947852, 1142998, 1184815, 1466488, 1477640, 1833110, 1895704, 2285996, 2369630, 2857495, 3666220, 4571992, 4739260, 5714990, 7332440, 9478520, 9715483, 11429980, 19430966, 22859960, 38861932, 48577415, 77723864, 97154830, 194309660, 388619320]

約数ペア:

[(1, 388619320), (2, 194309660), (4, 97154830), (5, 77723864), (8, 48577415), (10, 38861932), (17, 22859960), (20, 19430966), (34, 11429980), (40, 9715483), (41, 9478520), (53, 7332440), (68, 5714990), (82, 4739260), (85, 4571992), (106, 3666220), (136, 2857495), (164, 2369630), (170, 2285996), (205, 1895704), (212, 1833110), (263, 1477640), (265, 1466488), (328, 1184815), (340, 1142998), (410, 947852), (424, 916555), (526, 738820), (530, 733244), (680, 571499), (697, 557560), (820, 473926), (901, 431320), (1052, 369410), (1060, 366622), (1315, 295528), (1394, 278780), (1640, 236963), (1802, 215660), (2104, 184705), (2120, 183311), (2173, 178840), (2630, 147764), (2788, 139390), (3485, 111512), (3604, 107830), (4346, 89420), (4471, 86920), (4505, 86264), (5260, 73882), (5576, 69695), (6970, 55756), (7208, 53915), (8692, 44710), (8942, 43460), (9010, 43132), (10520, 36941), (10783, 36040), (10865, 35768), (13939, 27880), (13940, 27878), (17384, 22355), (17884, 21730), (18020, 21566)]