1225440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 4481568

約数和(自身を除く): 3256128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 37, 40, 45, 46, 48, 60, 69, 72, 74, 80, 90, 92, 96, 111, 115, 120, 138, 144, 148, 160, 180, 184, 185, 207, 222, 230, 240, 276, 288, 296, 333, 345, 360, 368, 370, 414, 444, 460, 480, 552, 555, 592, 666, 690, 720, 736, 740, 828, 851, 888, 920, 1035, 1104, 1110, 1184, 1332, 1380, 1440, 1480, 1656, 1665, 1702, 1776, 1840, 2070, 2208, 2220, 2553, 2664, 2760, 2960, 3312, 3330, 3404, 3552, 3680, 4140, 4255, 4440, 5106, 5328, 5520, 5920, 6624, 6660, 6808, 7659, 8280, 8510, 8880, 10212, 10656, 11040, 12765, 13320, 13616, 15318, 16560, 17020, 17760, 20424, 25530, 26640, 27232, 30636, 33120, 34040, 38295, 40848, 51060, 53280, 61272, 68080, 76590, 81696, 102120, 122544, 136160, 153180, 204240, 245088, 306360, 408480, 612720, 1225440]

約数ペア:

[(1, 1225440), (2, 612720), (3, 408480), (4, 306360), (5, 245088), (6, 204240), (8, 153180), (9, 136160), (10, 122544), (12, 102120), (15, 81696), (16, 76590), (18, 68080), (20, 61272), (23, 53280), (24, 51060), (30, 40848), (32, 38295), (36, 34040), (37, 33120), (40, 30636), (45, 27232), (46, 26640), (48, 25530), (60, 20424), (69, 17760), (72, 17020), (74, 16560), (80, 15318), (90, 13616), (92, 13320), (96, 12765), (111, 11040), (115, 10656), (120, 10212), (138, 8880), (144, 8510), (148, 8280), (160, 7659), (180, 6808), (184, 6660), (185, 6624), (207, 5920), (222, 5520), (230, 5328), (240, 5106), (276, 4440), (288, 4255), (296, 4140), (333, 3680), (345, 3552), (360, 3404), (368, 3330), (370, 3312), (414, 2960), (444, 2760), (460, 2664), (480, 2553), (552, 2220), (555, 2208), (592, 2070), (666, 1840), (690, 1776), (720, 1702), (736, 1665), (740, 1656), (828, 1480), (851, 1440), (888, 1380), (920, 1332), (1035, 1184), (1104, 1110)]