311012640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{215981}}^1$

素因数の和:216002

約数の個数: 72

約数和(自身を含む): 1061335548

約数和(自身を除く): 750322908

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 215981, 431962, 647943, 863924, 1079905, 1295886, 1727848, 1943829, 2159810, 2591772, 3239715, 3455696, 3887658, 4319620, 5183544, 6479430, 6911392, 7775316, 8639240, 9719145, 10367088, 12958860, 15550632, 17278480, 19438290, 20734176, 25917720, 31101264, 34556960, 38876580, 51835440, 62202528, 77753160, 103670880, 155506320, 311012640]

約数ペア:

[(1, 311012640), (2, 155506320), (3, 103670880), (4, 77753160), (5, 62202528), (6, 51835440), (8, 38876580), (9, 34556960), (10, 31101264), (12, 25917720), (15, 20734176), (16, 19438290), (18, 17278480), (20, 15550632), (24, 12958860), (30, 10367088), (32, 9719145), (36, 8639240), (40, 7775316), (45, 6911392), (48, 6479430), (60, 5183544), (72, 4319620), (80, 3887658), (90, 3455696), (96, 3239715), (120, 2591772), (144, 2159810), (160, 1943829), (180, 1727848), (240, 1295886), (288, 1079905), (360, 863924), (480, 647943), (720, 431962), (1440, 215981)]