261877980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47963}}^1$

素因数の和:47995

約数の個数: 96

約数和(自身を含む): 902490624

約数和(自身を除く): 640612644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 47963, 95926, 143889, 191852, 239815, 287778, 335741, 479630, 575556, 623519, 671482, 719445, 959260, 1007223, 1247038, 1342964, 1438890, 1678705, 1870557, 2014446, 2494076, 2877780, 3117595, 3357410, 3741114, 4028892, 4364633, 5036115, 6235190, 6714820, 7482228, 8729266, 9352785, 10072230, 12470380, 13093899, 17458532, 18705570, 20144460, 21823165, 26187798, 37411140, 43646330, 52375596, 65469495, 87292660, 130938990, 261877980]

約数ペア:

[(1, 261877980), (2, 130938990), (3, 87292660), (4, 65469495), (5, 52375596), (6, 43646330), (7, 37411140), (10, 26187798), (12, 21823165), (13, 20144460), (14, 18705570), (15, 17458532), (20, 13093899), (21, 12470380), (26, 10072230), (28, 9352785), (30, 8729266), (35, 7482228), (39, 6714820), (42, 6235190), (52, 5036115), (60, 4364633), (65, 4028892), (70, 3741114), (78, 3357410), (84, 3117595), (91, 2877780), (105, 2494076), (130, 2014446), (140, 1870557), (156, 1678705), (182, 1438890), (195, 1342964), (210, 1247038), (260, 1007223), (273, 959260), (364, 719445), (390, 671482), (420, 623519), (455, 575556), (546, 479630), (780, 335741), (910, 287778), (1092, 239815), (1365, 191852), (1820, 143889), (2730, 95926), (5460, 47963)]