81571680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1531}}^1$

素因数の和:1589

約数の個数: 144

約数和(自身を含む): 286073424

約数和(自身を除く): 204501744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 96, 111, 120, 144, 148, 160, 180, 185, 222, 240, 288, 296, 333, 360, 370, 444, 480, 555, 592, 666, 720, 740, 888, 1110, 1184, 1332, 1440, 1480, 1531, 1665, 1776, 2220, 2664, 2960, 3062, 3330, 3552, 4440, 4593, 5328, 5920, 6124, 6660, 7655, 8880, 9186, 10656, 12248, 13320, 13779, 15310, 17760, 18372, 22965, 24496, 26640, 27558, 30620, 36744, 45930, 48992, 53280, 55116, 56647, 61240, 68895, 73488, 91860, 110232, 113294, 122480, 137790, 146976, 169941, 183720, 220464, 226588, 244960, 275580, 283235, 339882, 367440, 440928, 453176, 509823, 551160, 566470, 679764, 734880, 849705, 906352, 1019646, 1102320, 1132940, 1359528, 1699410, 1812704, 2039292, 2204640, 2265880, 2549115, 2719056, 3398820, 4078584, 4531760, 5098230, 5438112, 6797640, 8157168, 9063520, 10196460, 13595280, 16314336, 20392920, 27190560, 40785840, 81571680]

約数ペア:

[(1, 81571680), (2, 40785840), (3, 27190560), (4, 20392920), (5, 16314336), (6, 13595280), (8, 10196460), (9, 9063520), (10, 8157168), (12, 6797640), (15, 5438112), (16, 5098230), (18, 4531760), (20, 4078584), (24, 3398820), (30, 2719056), (32, 2549115), (36, 2265880), (37, 2204640), (40, 2039292), (45, 1812704), (48, 1699410), (60, 1359528), (72, 1132940), (74, 1102320), (80, 1019646), (90, 906352), (96, 849705), (111, 734880), (120, 679764), (144, 566470), (148, 551160), (160, 509823), (180, 453176), (185, 440928), (222, 367440), (240, 339882), (288, 283235), (296, 275580), (333, 244960), (360, 226588), (370, 220464), (444, 183720), (480, 169941), (555, 146976), (592, 137790), (666, 122480), (720, 113294), (740, 110232), (888, 91860), (1110, 73488), (1184, 68895), (1332, 61240), (1440, 56647), (1480, 55116), (1531, 53280), (1665, 48992), (1776, 45930), (2220, 36744), (2664, 30620), (2960, 27558), (3062, 26640), (3330, 24496), (3552, 22965), (4440, 18372), (4593, 17760), (5328, 15310), (5920, 13779), (6124, 13320), (6660, 12248), (7655, 10656), (8880, 9186)]