256943340

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{17623}}^1$

素因数の和:17650

約数の個数: 84

約数和(自身を含む): 809047344

約数和(自身を除く): 552104004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1620, 2430, 2916, 3645, 4860, 7290, 14580, 17623, 35246, 52869, 70492, 88115, 105738, 158607, 176230, 211476, 264345, 317214, 352460, 475821, 528690, 634428, 793035, 951642, 1057380, 1427463, 1586070, 1903284, 2379105, 2854926, 3172140, 4282389, 4758210, 5709852, 7137315, 8564778, 9516420, 12847167, 14274630, 17129556, 21411945, 25694334, 28549260, 42823890, 51388668, 64235835, 85647780, 128471670, 256943340]

約数ペア:

[(1, 256943340), (2, 128471670), (3, 85647780), (4, 64235835), (5, 51388668), (6, 42823890), (9, 28549260), (10, 25694334), (12, 21411945), (15, 17129556), (18, 14274630), (20, 12847167), (27, 9516420), (30, 8564778), (36, 7137315), (45, 5709852), (54, 4758210), (60, 4282389), (81, 3172140), (90, 2854926), (108, 2379105), (135, 1903284), (162, 1586070), (180, 1427463), (243, 1057380), (270, 951642), (324, 793035), (405, 634428), (486, 528690), (540, 475821), (729, 352460), (810, 317214), (972, 264345), (1215, 211476), (1458, 176230), (1620, 158607), (2430, 105738), (2916, 88115), (3645, 70492), (4860, 52869), (7290, 35246), (14580, 17623)]