2018642500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^2$

素因数の和:184

約数の個数: 180

約数和(自身を含む): 5294505216

約数和(自身を除く): 3275862716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 61, 62, 70, 100, 122, 124, 125, 140, 155, 175, 217, 244, 250, 305, 310, 350, 427, 434, 500, 610, 620, 625, 700, 775, 854, 868, 875, 1085, 1220, 1250, 1525, 1550, 1708, 1750, 1891, 2135, 2170, 2500, 3050, 3100, 3500, 3721, 3782, 3875, 4270, 4340, 4375, 5425, 6100, 7442, 7564, 7625, 7750, 8540, 8750, 9455, 10675, 10850, 13237, 14884, 15250, 15500, 17500, 18605, 18910, 19375, 21350, 21700, 26047, 26474, 27125, 30500, 37210, 37820, 38125, 38750, 42700, 47275, 52094, 52948, 53375, 54250, 66185, 74420, 76250, 77500, 93025, 94550, 104188, 106750, 108500, 115351, 130235, 132370, 135625, 152500, 186050, 189100, 213500, 230702, 236375, 260470, 264740, 266875, 271250, 330925, 372100, 461404, 465125, 472750, 520940, 533750, 542500, 576755, 651175, 661850, 807457, 930250, 945500, 1067500, 1153510, 1181875, 1302350, 1323700, 1614914, 1654625, 1860500, 2307020, 2325625, 2363750, 2604700, 2883775, 3229828, 3255875, 3309250, 4037285, 4651250, 4727500, 5767550, 6511750, 6618500, 8074570, 8273125, 9302500, 11535100, 13023500, 14418875, 16149140, 16279375, 16546250, 20186425, 28837750, 32558750, 33092500, 40372850, 57675500, 65117500, 72094375, 80745700, 100932125, 144188750, 201864250, 288377500, 403728500, 504660625, 1009321250, 2018642500]

約数ペア:

[(1, 2018642500), (2, 1009321250), (4, 504660625), (5, 403728500), (7, 288377500), (10, 201864250), (14, 144188750), (20, 100932125), (25, 80745700), (28, 72094375), (31, 65117500), (35, 57675500), (50, 40372850), (61, 33092500), (62, 32558750), (70, 28837750), (100, 20186425), (122, 16546250), (124, 16279375), (125, 16149140), (140, 14418875), (155, 13023500), (175, 11535100), (217, 9302500), (244, 8273125), (250, 8074570), (305, 6618500), (310, 6511750), (350, 5767550), (427, 4727500), (434, 4651250), (500, 4037285), (610, 3309250), (620, 3255875), (625, 3229828), (700, 2883775), (775, 2604700), (854, 2363750), (868, 2325625), (875, 2307020), (1085, 1860500), (1220, 1654625), (1250, 1614914), (1525, 1323700), (1550, 1302350), (1708, 1181875), (1750, 1153510), (1891, 1067500), (2135, 945500), (2170, 930250), (2500, 807457), (3050, 661850), (3100, 651175), (3500, 576755), (3721, 542500), (3782, 533750), (3875, 520940), (4270, 472750), (4340, 465125), (4375, 461404), (5425, 372100), (6100, 330925), (7442, 271250), (7564, 266875), (7625, 264740), (7750, 260470), (8540, 236375), (8750, 230702), (9455, 213500), (10675, 189100), (10850, 186050), (13237, 152500), (14884, 135625), (15250, 132370), (15500, 130235), (17500, 115351), (18605, 108500), (18910, 106750), (19375, 104188), (21350, 94550), (21700, 93025), (26047, 77500), (26474, 76250), (27125, 74420), (30500, 66185), (37210, 54250), (37820, 53375), (38125, 52948), (38750, 52094), (42700, 47275)]