254410020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17891}}^1$

素因数の和:17985

約数の個数: 72

約数和(自身を含む): 781522560

約数和(自身を除く): 527112540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 17891, 35782, 53673, 71564, 89455, 107346, 161019, 178910, 214692, 268365, 322038, 357820, 536730, 644076, 805095, 1073460, 1413389, 1610190, 2826778, 3220380, 4240167, 5653556, 7066945, 8480334, 12720501, 14133890, 16960668, 21200835, 25441002, 28267780, 42401670, 50882004, 63602505, 84803340, 127205010, 254410020]

約数ペア:

[(1, 254410020), (2, 127205010), (3, 84803340), (4, 63602505), (5, 50882004), (6, 42401670), (9, 28267780), (10, 25441002), (12, 21200835), (15, 16960668), (18, 14133890), (20, 12720501), (30, 8480334), (36, 7066945), (45, 5653556), (60, 4240167), (79, 3220380), (90, 2826778), (158, 1610190), (180, 1413389), (237, 1073460), (316, 805095), (395, 644076), (474, 536730), (711, 357820), (790, 322038), (948, 268365), (1185, 214692), (1422, 178910), (1580, 161019), (2370, 107346), (2844, 89455), (3555, 71564), (4740, 53673), (7110, 35782), (14220, 17891)]