20211897500

素因数分解:

$2^2\times 5^4\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{619}}^1$

素因数の和:1033

約数の個数: 120

約数和(自身を含む): 45596092080

約数和(自身を除く): 25384194580

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 250, 353, 370, 500, 619, 625, 706, 740, 925, 1238, 1250, 1412, 1765, 1850, 2476, 2500, 3095, 3530, 3700, 4625, 6190, 7060, 8825, 9250, 12380, 13061, 15475, 17650, 18500, 22903, 23125, 26122, 30950, 35300, 44125, 45806, 46250, 52244, 61900, 65305, 77375, 88250, 91612, 92500, 114515, 130610, 154750, 176500, 218507, 220625, 229030, 261220, 309500, 326525, 386875, 437014, 441250, 458060, 572575, 653050, 773750, 874028, 882500, 1092535, 1145150, 1306100, 1547500, 1632625, 2185070, 2290300, 2862875, 3265250, 4370140, 5462675, 5725750, 6530500, 8084759, 8163125, 10925350, 11451500, 14314375, 16169518, 16326250, 21850700, 27313375, 28628750, 32339036, 32652500, 40423795, 54626750, 57257500, 80847590, 109253500, 136566875, 161695180, 202118975, 273133750, 404237950, 546267500, 808475900, 1010594875, 2021189750, 4042379500, 5052974375, 10105948750, 20211897500]

約数ペア:

[(1, 20211897500), (2, 10105948750), (4, 5052974375), (5, 4042379500), (10, 2021189750), (20, 1010594875), (25, 808475900), (37, 546267500), (50, 404237950), (74, 273133750), (100, 202118975), (125, 161695180), (148, 136566875), (185, 109253500), (250, 80847590), (353, 57257500), (370, 54626750), (500, 40423795), (619, 32652500), (625, 32339036), (706, 28628750), (740, 27313375), (925, 21850700), (1238, 16326250), (1250, 16169518), (1412, 14314375), (1765, 11451500), (1850, 10925350), (2476, 8163125), (2500, 8084759), (3095, 6530500), (3530, 5725750), (3700, 5462675), (4625, 4370140), (6190, 3265250), (7060, 2862875), (8825, 2290300), (9250, 2185070), (12380, 1632625), (13061, 1547500), (15475, 1306100), (17650, 1145150), (18500, 1092535), (22903, 882500), (23125, 874028), (26122, 773750), (30950, 653050), (35300, 572575), (44125, 458060), (45806, 441250), (46250, 437014), (52244, 386875), (61900, 326525), (65305, 309500), (77375, 261220), (88250, 229030), (91612, 220625), (92500, 218507), (114515, 176500), (130610, 154750)]