200910380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 481904640

約数和(自身を除く): 280994260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 89, 110, 124, 155, 178, 220, 310, 331, 341, 356, 445, 620, 662, 682, 890, 979, 1324, 1364, 1655, 1705, 1780, 1958, 2759, 3310, 3410, 3641, 3916, 4895, 5518, 6620, 6820, 7282, 9790, 10261, 11036, 13795, 14564, 18205, 19580, 20522, 27590, 29459, 30349, 36410, 41044, 51305, 55180, 58918, 60698, 72820, 102610, 112871, 117836, 121396, 147295, 151745, 205220, 225742, 294590, 303490, 324049, 451484, 564355, 589180, 606980, 648098, 913229, 1128710, 1296196, 1620245, 1826458, 2257420, 3240490, 3652916, 4566145, 6480980, 9132290, 10045519, 18264580, 20091038, 40182076, 50227595, 100455190, 200910380]

約数ペア:

[(1, 200910380), (2, 100455190), (4, 50227595), (5, 40182076), (10, 20091038), (11, 18264580), (20, 10045519), (22, 9132290), (31, 6480980), (44, 4566145), (55, 3652916), (62, 3240490), (89, 2257420), (110, 1826458), (124, 1620245), (155, 1296196), (178, 1128710), (220, 913229), (310, 648098), (331, 606980), (341, 589180), (356, 564355), (445, 451484), (620, 324049), (662, 303490), (682, 294590), (890, 225742), (979, 205220), (1324, 151745), (1364, 147295), (1655, 121396), (1705, 117836), (1780, 112871), (1958, 102610), (2759, 72820), (3310, 60698), (3410, 58918), (3641, 55180), (3916, 51305), (4895, 41044), (5518, 36410), (6620, 30349), (6820, 29459), (7282, 27590), (9790, 20522), (10261, 19580), (11036, 18205), (13795, 14564)]