428227900

素因数分解:

$2^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 952595280

約数和(自身を除く): 524367380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 100, 118, 181, 236, 295, 362, 401, 590, 724, 802, 905, 1180, 1475, 1604, 1810, 2005, 2950, 3620, 4010, 4525, 5900, 8020, 9050, 10025, 10679, 18100, 20050, 21358, 23659, 40100, 42716, 47318, 53395, 72581, 94636, 106790, 118295, 145162, 213580, 236590, 266975, 290324, 362905, 473180, 533950, 591475, 725810, 1067900, 1182950, 1451620, 1814525, 2365900, 3629050, 4282279, 7258100, 8564558, 17129116, 21411395, 42822790, 85645580, 107056975, 214113950, 428227900]

約数ペア:

[(1, 428227900), (2, 214113950), (4, 107056975), (5, 85645580), (10, 42822790), (20, 21411395), (25, 17129116), (50, 8564558), (59, 7258100), (100, 4282279), (118, 3629050), (181, 2365900), (236, 1814525), (295, 1451620), (362, 1182950), (401, 1067900), (590, 725810), (724, 591475), (802, 533950), (905, 473180), (1180, 362905), (1475, 290324), (1604, 266975), (1810, 236590), (2005, 213580), (2950, 145162), (3620, 118295), (4010, 106790), (4525, 94636), (5900, 72581), (8020, 53395), (9050, 47318), (10025, 42716), (10679, 40100), (18100, 23659), (20050, 21358)]