18101520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:861

約数の個数: 120

約数和(自身を含む): 62829312

約数和(自身を除く): 44727792

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 811, 930, 1116, 1240, 1395, 1488, 1622, 1860, 2232, 2433, 2480, 2790, 3244, 3720, 4055, 4464, 4866, 5580, 6488, 7299, 7440, 8110, 9732, 11160, 12165, 12976, 14598, 16220, 19464, 22320, 24330, 25141, 29196, 32440, 36495, 38928, 48660, 50282, 58392, 64880, 72990, 75423, 97320, 100564, 116784, 125705, 145980, 150846, 194640, 201128, 226269, 251410, 291960, 301692, 377115, 402256, 452538, 502820, 583920, 603384, 754230, 905076, 1005640, 1131345, 1206768, 1508460, 1810152, 2011280, 2262690, 3016920, 3620304, 4525380, 6033840, 9050760, 18101520]

約数ペア:

[(1, 18101520), (2, 9050760), (3, 6033840), (4, 4525380), (5, 3620304), (6, 3016920), (8, 2262690), (9, 2011280), (10, 1810152), (12, 1508460), (15, 1206768), (16, 1131345), (18, 1005640), (20, 905076), (24, 754230), (30, 603384), (31, 583920), (36, 502820), (40, 452538), (45, 402256), (48, 377115), (60, 301692), (62, 291960), (72, 251410), (80, 226269), (90, 201128), (93, 194640), (120, 150846), (124, 145980), (144, 125705), (155, 116784), (180, 100564), (186, 97320), (240, 75423), (248, 72990), (279, 64880), (310, 58392), (360, 50282), (372, 48660), (465, 38928), (496, 36495), (558, 32440), (620, 29196), (720, 25141), (744, 24330), (811, 22320), (930, 19464), (1116, 16220), (1240, 14598), (1395, 12976), (1488, 12165), (1622, 11160), (1860, 9732), (2232, 8110), (2433, 7440), (2480, 7299), (2790, 6488), (3244, 5580), (3720, 4866), (4055, 4464)]