640349280

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{148229}}^1$

素因数の和:148253

約数の個数: 96

約数和(自身を含む): 2241237600

約数和(自身を除く): 1600888320

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, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 148229, 296458, 444687, 592916, 741145, 889374, 1185832, 1334061, 1482290, 1778748, 2223435, 2371664, 2668122, 2964580, 3557496, 4002183, 4446870, 4743328, 5336244, 5929160, 6670305, 7114992, 8004366, 8893740, 10672488, 11858320, 13340610, 14229984, 16008732, 17787480, 20010915, 21344976, 23716640, 26681220, 32017464, 35574960, 40021830, 42689952, 53362440, 64034928, 71149920, 80043660, 106724880, 128069856, 160087320, 213449760, 320174640, 640349280]

約数ペア:

[(1, 640349280), (2, 320174640), (3, 213449760), (4, 160087320), (5, 128069856), (6, 106724880), (8, 80043660), (9, 71149920), (10, 64034928), (12, 53362440), (15, 42689952), (16, 40021830), (18, 35574960), (20, 32017464), (24, 26681220), (27, 23716640), (30, 21344976), (32, 20010915), (36, 17787480), (40, 16008732), (45, 14229984), (48, 13340610), (54, 11858320), (60, 10672488), (72, 8893740), (80, 8004366), (90, 7114992), (96, 6670305), (108, 5929160), (120, 5336244), (135, 4743328), (144, 4446870), (160, 4002183), (180, 3557496), (216, 2964580), (240, 2668122), (270, 2371664), (288, 2223435), (360, 1778748), (432, 1482290), (480, 1334061), (540, 1185832), (720, 889374), (864, 741145), (1080, 592916), (1440, 444687), (2160, 296458), (4320, 148229)]