218627500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 180

約数和(自身を含む): 608017872

約数和(自身を除く): 389390372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 31, 35, 50, 52, 62, 65, 70, 91, 100, 124, 125, 130, 140, 155, 175, 182, 217, 250, 260, 310, 325, 350, 364, 403, 434, 455, 500, 620, 625, 650, 700, 775, 806, 868, 875, 910, 961, 1085, 1250, 1300, 1550, 1612, 1625, 1750, 1820, 1922, 2015, 2170, 2275, 2500, 2821, 3100, 3250, 3500, 3844, 3875, 4030, 4340, 4375, 4550, 4805, 5425, 5642, 6500, 6727, 7750, 8060, 8125, 8750, 9100, 9610, 10075, 10850, 11284, 11375, 12493, 13454, 14105, 15500, 16250, 17500, 19220, 19375, 20150, 21700, 22750, 24025, 24986, 26908, 27125, 28210, 32500, 33635, 38750, 40300, 45500, 48050, 49972, 50375, 54250, 56420, 56875, 62465, 67270, 70525, 77500, 87451, 96100, 100750, 108500, 113750, 120125, 124930, 134540, 135625, 141050, 168175, 174902, 201500, 227500, 240250, 249860, 251875, 271250, 282100, 312325, 336350, 349804, 352625, 437255, 480500, 503750, 542500, 600625, 624650, 672700, 705250, 840875, 874510, 1007500, 1201250, 1249300, 1410500, 1561625, 1681750, 1749020, 1763125, 2186275, 2402500, 3123250, 3363500, 3526250, 4204375, 4372550, 6246500, 7052500, 7808125, 8408750, 8745100, 10931375, 15616250, 16817500, 21862750, 31232500, 43725500, 54656875, 109313750, 218627500]

約数ペア:

[(1, 218627500), (2, 109313750), (4, 54656875), (5, 43725500), (7, 31232500), (10, 21862750), (13, 16817500), (14, 15616250), (20, 10931375), (25, 8745100), (26, 8408750), (28, 7808125), (31, 7052500), (35, 6246500), (50, 4372550), (52, 4204375), (62, 3526250), (65, 3363500), (70, 3123250), (91, 2402500), (100, 2186275), (124, 1763125), (125, 1749020), (130, 1681750), (140, 1561625), (155, 1410500), (175, 1249300), (182, 1201250), (217, 1007500), (250, 874510), (260, 840875), (310, 705250), (325, 672700), (350, 624650), (364, 600625), (403, 542500), (434, 503750), (455, 480500), (500, 437255), (620, 352625), (625, 349804), (650, 336350), (700, 312325), (775, 282100), (806, 271250), (868, 251875), (875, 249860), (910, 240250), (961, 227500), (1085, 201500), (1250, 174902), (1300, 168175), (1550, 141050), (1612, 135625), (1625, 134540), (1750, 124930), (1820, 120125), (1922, 113750), (2015, 108500), (2170, 100750), (2275, 96100), (2500, 87451), (2821, 77500), (3100, 70525), (3250, 67270), (3500, 62465), (3844, 56875), (3875, 56420), (4030, 54250), (4340, 50375), (4375, 49972), (4550, 48050), (4805, 45500), (5425, 40300), (5642, 38750), (6500, 33635), (6727, 32500), (7750, 28210), (8060, 27125), (8125, 26908), (8750, 24986), (9100, 24025), (9610, 22750), (10075, 21700), (10850, 20150), (11284, 19375), (11375, 19220), (12493, 17500), (13454, 16250), (14105, 15500)]