389999520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{270833}}^1$

素因数の和:270854

約数の個数: 72

約数和(自身を含む): 1330878276

約数和(自身を除く): 940878756

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, 270833, 541666, 812499, 1083332, 1354165, 1624998, 2166664, 2437497, 2708330, 3249996, 4062495, 4333328, 4874994, 5416660, 6499992, 8124990, 8666656, 9749988, 10833320, 12187485, 12999984, 16249980, 19499976, 21666640, 24374970, 25999968, 32499960, 38999952, 43333280, 48749940, 64999920, 77999904, 97499880, 129999840, 194999760, 389999520]

約数ペア:

[(1, 389999520), (2, 194999760), (3, 129999840), (4, 97499880), (5, 77999904), (6, 64999920), (8, 48749940), (9, 43333280), (10, 38999952), (12, 32499960), (15, 25999968), (16, 24374970), (18, 21666640), (20, 19499976), (24, 16249980), (30, 12999984), (32, 12187485), (36, 10833320), (40, 9749988), (45, 8666656), (48, 8124990), (60, 6499992), (72, 5416660), (80, 4874994), (90, 4333328), (96, 4062495), (120, 3249996), (144, 2708330), (160, 2437497), (180, 2166664), (240, 1624998), (288, 1354165), (360, 1083332), (480, 812499), (720, 541666), (1440, 270833)]