81999840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{773}}^1$

素因数の和:821

約数の個数: 192

約数和(自身を含む): 294912576

約数和(自身を除く): 212912736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 96, 102, 104, 120, 130, 136, 156, 160, 170, 195, 204, 208, 221, 240, 255, 260, 272, 312, 340, 390, 408, 416, 442, 480, 510, 520, 544, 624, 663, 680, 773, 780, 816, 884, 1020, 1040, 1105, 1248, 1326, 1360, 1546, 1560, 1632, 1768, 2040, 2080, 2210, 2319, 2652, 2720, 3092, 3120, 3315, 3536, 3865, 4080, 4420, 4638, 5304, 6184, 6240, 6630, 7072, 7730, 8160, 8840, 9276, 10049, 10608, 11595, 12368, 13141, 13260, 15460, 17680, 18552, 20098, 21216, 23190, 24736, 26282, 26520, 30147, 30920, 35360, 37104, 39423, 40196, 46380, 50245, 52564, 53040, 60294, 61840, 65705, 74208, 78846, 80392, 92760, 100490, 105128, 106080, 120588, 123680, 131410, 150735, 157692, 160784, 170833, 185520, 197115, 200980, 210256, 241176, 262820, 301470, 315384, 321568, 341666, 371040, 394230, 401960, 420512, 482352, 512499, 525640, 602940, 630768, 683332, 788460, 803920, 854165, 964704, 1024998, 1051280, 1205880, 1261536, 1366664, 1576920, 1607840, 1708330, 2049996, 2102560, 2411760, 2562495, 2733328, 3153840, 3416660, 4099992, 4823520, 5124990, 5466656, 6307680, 6833320, 8199984, 10249980, 13666640, 16399968, 20499960, 27333280, 40999920, 81999840]

約数ペア:

[(1, 81999840), (2, 40999920), (3, 27333280), (4, 20499960), (5, 16399968), (6, 13666640), (8, 10249980), (10, 8199984), (12, 6833320), (13, 6307680), (15, 5466656), (16, 5124990), (17, 4823520), (20, 4099992), (24, 3416660), (26, 3153840), (30, 2733328), (32, 2562495), (34, 2411760), (39, 2102560), (40, 2049996), (48, 1708330), (51, 1607840), (52, 1576920), (60, 1366664), (65, 1261536), (68, 1205880), (78, 1051280), (80, 1024998), (85, 964704), (96, 854165), (102, 803920), (104, 788460), (120, 683332), (130, 630768), (136, 602940), (156, 525640), (160, 512499), (170, 482352), (195, 420512), (204, 401960), (208, 394230), (221, 371040), (240, 341666), (255, 321568), (260, 315384), (272, 301470), (312, 262820), (340, 241176), (390, 210256), (408, 200980), (416, 197115), (442, 185520), (480, 170833), (510, 160784), (520, 157692), (544, 150735), (624, 131410), (663, 123680), (680, 120588), (773, 106080), (780, 105128), (816, 100490), (884, 92760), (1020, 80392), (1040, 78846), (1105, 74208), (1248, 65705), (1326, 61840), (1360, 60294), (1546, 53040), (1560, 52564), (1632, 50245), (1768, 46380), (2040, 40196), (2080, 39423), (2210, 37104), (2319, 35360), (2652, 30920), (2720, 30147), (3092, 26520), (3120, 26282), (3315, 24736), (3536, 23190), (3865, 21216), (4080, 20098), (4420, 18552), (4638, 17680), (5304, 15460), (6184, 13260), (6240, 13141), (6630, 12368), (7072, 11595), (7730, 10608), (8160, 10049), (8840, 9276)]