81153800

素因数分解:

$2^3\times 5^2\times 7^4\times {\mathrm{13}}^2$

素因数の和:70

約数の個数: 180

約数和(自身を含む): 238351095

約数和(自身を除く): 157197295

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 169, 175, 182, 196, 200, 245, 260, 280, 325, 338, 343, 350, 364, 392, 455, 490, 520, 637, 650, 676, 686, 700, 728, 845, 910, 980, 1183, 1225, 1274, 1300, 1352, 1372, 1400, 1690, 1715, 1820, 1960, 2275, 2366, 2401, 2450, 2548, 2600, 2744, 3185, 3380, 3430, 3640, 4225, 4459, 4550, 4732, 4802, 4900, 5096, 5915, 6370, 6760, 6860, 8281, 8450, 8575, 8918, 9100, 9464, 9604, 9800, 11830, 12005, 12740, 13720, 15925, 16562, 16900, 17150, 17836, 18200, 19208, 22295, 23660, 24010, 25480, 29575, 31213, 31850, 33124, 33800, 34300, 35672, 41405, 44590, 47320, 48020, 57967, 59150, 60025, 62426, 63700, 66248, 68600, 82810, 89180, 96040, 111475, 115934, 118300, 120050, 124852, 127400, 156065, 165620, 178360, 207025, 222950, 231868, 236600, 240100, 249704, 289835, 312130, 331240, 405769, 414050, 445900, 463736, 480200, 579670, 624260, 780325, 811538, 828100, 891800, 1159340, 1248520, 1449175, 1560650, 1623076, 1656200, 2028845, 2318680, 2898350, 3121300, 3246152, 4057690, 5796700, 6242600, 8115380, 10144225, 11593400, 16230760, 20288450, 40576900, 81153800]

約数ペア:

[(1, 81153800), (2, 40576900), (4, 20288450), (5, 16230760), (7, 11593400), (8, 10144225), (10, 8115380), (13, 6242600), (14, 5796700), (20, 4057690), (25, 3246152), (26, 3121300), (28, 2898350), (35, 2318680), (40, 2028845), (49, 1656200), (50, 1623076), (52, 1560650), (56, 1449175), (65, 1248520), (70, 1159340), (91, 891800), (98, 828100), (100, 811538), (104, 780325), (130, 624260), (140, 579670), (169, 480200), (175, 463736), (182, 445900), (196, 414050), (200, 405769), (245, 331240), (260, 312130), (280, 289835), (325, 249704), (338, 240100), (343, 236600), (350, 231868), (364, 222950), (392, 207025), (455, 178360), (490, 165620), (520, 156065), (637, 127400), (650, 124852), (676, 120050), (686, 118300), (700, 115934), (728, 111475), (845, 96040), (910, 89180), (980, 82810), (1183, 68600), (1225, 66248), (1274, 63700), (1300, 62426), (1352, 60025), (1372, 59150), (1400, 57967), (1690, 48020), (1715, 47320), (1820, 44590), (1960, 41405), (2275, 35672), (2366, 34300), (2401, 33800), (2450, 33124), (2548, 31850), (2600, 31213), (2744, 29575), (3185, 25480), (3380, 24010), (3430, 23660), (3640, 22295), (4225, 19208), (4459, 18200), (4550, 17836), (4732, 17150), (4802, 16900), (4900, 16562), (5096, 15925), (5915, 13720), (6370, 12740), (6760, 12005), (6860, 11830), (8281, 9800), (8450, 9604), (8575, 9464), (8918, 9100)]