127888880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 358262784

約数和(自身を除く): 230373904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 47, 56, 70, 80, 86, 94, 112, 113, 140, 172, 188, 215, 226, 235, 280, 301, 329, 344, 376, 430, 452, 470, 560, 565, 602, 658, 688, 752, 791, 860, 904, 940, 1130, 1204, 1316, 1505, 1582, 1645, 1720, 1808, 1880, 2021, 2260, 2408, 2632, 3010, 3164, 3290, 3440, 3760, 3955, 4042, 4520, 4816, 4859, 5264, 5311, 6020, 6328, 6580, 7910, 8084, 9040, 9718, 10105, 10622, 12040, 12656, 13160, 14147, 15820, 16168, 19436, 20210, 21244, 24080, 24295, 26320, 26555, 28294, 31640, 32336, 34013, 37177, 38872, 40420, 42488, 48590, 53110, 56588, 63280, 68026, 70735, 74354, 77744, 80840, 84976, 97180, 106220, 113176, 136052, 141470, 148708, 161680, 170065, 185885, 194360, 212440, 226352, 228373, 272104, 282940, 297416, 340130, 371770, 388720, 424880, 456746, 544208, 565880, 594832, 680260, 743540, 913492, 1131760, 1141865, 1360520, 1487080, 1598611, 1826984, 2283730, 2721040, 2974160, 3197222, 3653968, 4567460, 6394444, 7993055, 9134920, 12788888, 15986110, 18269840, 25577776, 31972220, 63944440, 127888880]

約数ペア:

[(1, 127888880), (2, 63944440), (4, 31972220), (5, 25577776), (7, 18269840), (8, 15986110), (10, 12788888), (14, 9134920), (16, 7993055), (20, 6394444), (28, 4567460), (35, 3653968), (40, 3197222), (43, 2974160), (47, 2721040), (56, 2283730), (70, 1826984), (80, 1598611), (86, 1487080), (94, 1360520), (112, 1141865), (113, 1131760), (140, 913492), (172, 743540), (188, 680260), (215, 594832), (226, 565880), (235, 544208), (280, 456746), (301, 424880), (329, 388720), (344, 371770), (376, 340130), (430, 297416), (452, 282940), (470, 272104), (560, 228373), (565, 226352), (602, 212440), (658, 194360), (688, 185885), (752, 170065), (791, 161680), (860, 148708), (904, 141470), (940, 136052), (1130, 113176), (1204, 106220), (1316, 97180), (1505, 84976), (1582, 80840), (1645, 77744), (1720, 74354), (1808, 70735), (1880, 68026), (2021, 63280), (2260, 56588), (2408, 53110), (2632, 48590), (3010, 42488), (3164, 40420), (3290, 38872), (3440, 37177), (3760, 34013), (3955, 32336), (4042, 31640), (4520, 28294), (4816, 26555), (4859, 26320), (5264, 24295), (5311, 24080), (6020, 21244), (6328, 20210), (6580, 19436), (7910, 16168), (8084, 15820), (9040, 14147), (9718, 13160), (10105, 12656), (10622, 12040)]