18896168320

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{1039}}^1$

素因数の和:1396

約数の個数: 128

約数和(自身を含む): 45756547200

約数和(自身を除く): 26860378880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 181, 314, 320, 362, 628, 640, 724, 785, 905, 1039, 1256, 1448, 1570, 1810, 2078, 2512, 2896, 3140, 3620, 4156, 5024, 5195, 5792, 6280, 7240, 8312, 10048, 10390, 11584, 12560, 14480, 16624, 20096, 20780, 23168, 25120, 28417, 28960, 33248, 41560, 50240, 56834, 57920, 66496, 83120, 100480, 113668, 115840, 132992, 142085, 163123, 166240, 188059, 227336, 284170, 326246, 332480, 376118, 454672, 568340, 652492, 664960, 752236, 815615, 909344, 940295, 1136680, 1304984, 1504472, 1631230, 1818688, 1880590, 2273360, 2609968, 3008944, 3262460, 3637376, 3761180, 4546720, 5219936, 6017888, 6524920, 7522360, 9093440, 10439872, 12035776, 13049840, 15044720, 18186880, 20879744, 24071552, 26099680, 29525263, 30089440, 52199360, 59050526, 60178880, 104398720, 118101052, 120357760, 147626315, 236202104, 295252630, 472404208, 590505260, 944808416, 1181010520, 1889616832, 2362021040, 3779233664, 4724042080, 9448084160, 18896168320]

約数ペア:

[(1, 18896168320), (2, 9448084160), (4, 4724042080), (5, 3779233664), (8, 2362021040), (10, 1889616832), (16, 1181010520), (20, 944808416), (32, 590505260), (40, 472404208), (64, 295252630), (80, 236202104), (128, 147626315), (157, 120357760), (160, 118101052), (181, 104398720), (314, 60178880), (320, 59050526), (362, 52199360), (628, 30089440), (640, 29525263), (724, 26099680), (785, 24071552), (905, 20879744), (1039, 18186880), (1256, 15044720), (1448, 13049840), (1570, 12035776), (1810, 10439872), (2078, 9093440), (2512, 7522360), (2896, 6524920), (3140, 6017888), (3620, 5219936), (4156, 4546720), (5024, 3761180), (5195, 3637376), (5792, 3262460), (6280, 3008944), (7240, 2609968), (8312, 2273360), (10048, 1880590), (10390, 1818688), (11584, 1631230), (12560, 1504472), (14480, 1304984), (16624, 1136680), (20096, 940295), (20780, 909344), (23168, 815615), (25120, 752236), (28417, 664960), (28960, 652492), (33248, 568340), (41560, 454672), (50240, 376118), (56834, 332480), (57920, 326246), (66496, 284170), (83120, 227336), (100480, 188059), (113668, 166240), (115840, 163123), (132992, 142085)]