2015252500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{19661}}^1$

素因数の和:19726

約数の個数: 60

約数和(自身を含む): 4514670468

約数和(自身を除く): 2499417968

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 625, 820, 1025, 1250, 2050, 2500, 4100, 5125, 10250, 19661, 20500, 25625, 39322, 51250, 78644, 98305, 102500, 196610, 393220, 491525, 806101, 983050, 1612202, 1966100, 2457625, 3224404, 4030505, 4915250, 8061010, 9830500, 12288125, 16122020, 20152525, 24576250, 40305050, 49152500, 80610100, 100762625, 201525250, 403050500, 503813125, 1007626250, 2015252500]

約数ペア:

[(1, 2015252500), (2, 1007626250), (4, 503813125), (5, 403050500), (10, 201525250), (20, 100762625), (25, 80610100), (41, 49152500), (50, 40305050), (82, 24576250), (100, 20152525), (125, 16122020), (164, 12288125), (205, 9830500), (250, 8061010), (410, 4915250), (500, 4030505), (625, 3224404), (820, 2457625), (1025, 1966100), (1250, 1612202), (2050, 983050), (2500, 806101), (4100, 491525), (5125, 393220), (10250, 196610), (19661, 102500), (20500, 98305), (25625, 78644), (39322, 51250)]