25621920

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{659}}^1$

素因数の和:689

約数の個数: 144

約数和(自身を含む): 90810720

約数和(自身を除く): 65188800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 659, 720, 810, 864, 972, 1080, 1215, 1296, 1318, 1440, 1620, 1944, 1977, 2160, 2430, 2592, 2636, 3240, 3295, 3888, 3954, 4320, 4860, 5272, 5931, 6480, 6590, 7776, 7908, 9720, 9885, 10544, 11862, 12960, 13180, 15816, 17793, 19440, 19770, 21088, 23724, 26360, 29655, 31632, 35586, 38880, 39540, 47448, 52720, 53379, 59310, 63264, 71172, 79080, 88965, 94896, 105440, 106758, 118620, 142344, 158160, 160137, 177930, 189792, 213516, 237240, 266895, 284688, 316320, 320274, 355860, 427032, 474480, 533790, 569376, 640548, 711720, 800685, 854064, 948960, 1067580, 1281096, 1423440, 1601370, 1708128, 2135160, 2562192, 2846880, 3202740, 4270320, 5124384, 6405480, 8540640, 12810960, 25621920]

約数ペア:

[(1, 25621920), (2, 12810960), (3, 8540640), (4, 6405480), (5, 5124384), (6, 4270320), (8, 3202740), (9, 2846880), (10, 2562192), (12, 2135160), (15, 1708128), (16, 1601370), (18, 1423440), (20, 1281096), (24, 1067580), (27, 948960), (30, 854064), (32, 800685), (36, 711720), (40, 640548), (45, 569376), (48, 533790), (54, 474480), (60, 427032), (72, 355860), (80, 320274), (81, 316320), (90, 284688), (96, 266895), (108, 237240), (120, 213516), (135, 189792), (144, 177930), (160, 160137), (162, 158160), (180, 142344), (216, 118620), (240, 106758), (243, 105440), (270, 94896), (288, 88965), (324, 79080), (360, 71172), (405, 63264), (432, 59310), (480, 53379), (486, 52720), (540, 47448), (648, 39540), (659, 38880), (720, 35586), (810, 31632), (864, 29655), (972, 26360), (1080, 23724), (1215, 21088), (1296, 19770), (1318, 19440), (1440, 17793), (1620, 15816), (1944, 13180), (1977, 12960), (2160, 11862), (2430, 10544), (2592, 9885), (2636, 9720), (3240, 7908), (3295, 7776), (3888, 6590), (3954, 6480), (4320, 5931), (4860, 5272)]