20452250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 128

約数和(自身を含む): 50319360

約数和(自身を除く): 29867110

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 29, 31, 35, 50, 58, 62, 65, 70, 91, 125, 130, 145, 155, 175, 182, 203, 217, 250, 290, 310, 325, 350, 377, 403, 406, 434, 455, 650, 725, 754, 775, 806, 875, 899, 910, 1015, 1085, 1450, 1550, 1625, 1750, 1798, 1885, 2015, 2030, 2170, 2275, 2639, 2821, 3250, 3625, 3770, 3875, 4030, 4495, 4550, 5075, 5278, 5425, 5642, 6293, 7250, 7750, 8990, 9425, 10075, 10150, 10850, 11375, 11687, 12586, 13195, 14105, 18850, 20150, 22475, 22750, 23374, 25375, 26390, 27125, 28210, 31465, 44950, 47125, 50375, 50750, 54250, 58435, 62930, 65975, 70525, 81809, 94250, 100750, 112375, 116870, 131950, 141050, 157325, 163618, 224750, 292175, 314650, 329875, 352625, 409045, 584350, 659750, 705250, 786625, 818090, 1460875, 1573250, 2045225, 2921750, 4090450, 10226125, 20452250]

約数ペア:

[(1, 20452250), (2, 10226125), (5, 4090450), (7, 2921750), (10, 2045225), (13, 1573250), (14, 1460875), (25, 818090), (26, 786625), (29, 705250), (31, 659750), (35, 584350), (50, 409045), (58, 352625), (62, 329875), (65, 314650), (70, 292175), (91, 224750), (125, 163618), (130, 157325), (145, 141050), (155, 131950), (175, 116870), (182, 112375), (203, 100750), (217, 94250), (250, 81809), (290, 70525), (310, 65975), (325, 62930), (350, 58435), (377, 54250), (403, 50750), (406, 50375), (434, 47125), (455, 44950), (650, 31465), (725, 28210), (754, 27125), (775, 26390), (806, 25375), (875, 23374), (899, 22750), (910, 22475), (1015, 20150), (1085, 18850), (1450, 14105), (1550, 13195), (1625, 12586), (1750, 11687), (1798, 11375), (1885, 10850), (2015, 10150), (2030, 10075), (2170, 9425), (2275, 8990), (2639, 7750), (2821, 7250), (3250, 6293), (3625, 5642), (3770, 5425), (3875, 5278), (4030, 5075), (4495, 4550)]