78898280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{449}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 186624000

約数和(自身を除く): 107725720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 191, 230, 382, 449, 460, 764, 898, 920, 955, 1528, 1796, 1910, 2245, 3592, 3820, 4393, 4490, 7640, 8786, 8980, 10327, 17572, 17960, 20654, 21965, 35144, 41308, 43930, 51635, 82616, 85759, 87860, 103270, 171518, 175720, 206540, 343036, 413080, 428795, 686072, 857590, 1715180, 1972457, 3430360, 3944914, 7889828, 9862285, 15779656, 19724570, 39449140, 78898280]

約数ペア:

[(1, 78898280), (2, 39449140), (4, 19724570), (5, 15779656), (8, 9862285), (10, 7889828), (20, 3944914), (23, 3430360), (40, 1972457), (46, 1715180), (92, 857590), (115, 686072), (184, 428795), (191, 413080), (230, 343036), (382, 206540), (449, 175720), (460, 171518), (764, 103270), (898, 87860), (920, 85759), (955, 82616), (1528, 51635), (1796, 43930), (1910, 41308), (2245, 35144), (3592, 21965), (3820, 20654), (4393, 17960), (4490, 17572), (7640, 10327), (8786, 8980)]