261404208

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{449}}^1$

素因数の和:787

約数の個数: 120

約数和(自身を含む): 792136800

約数和(自身を除く): 530732592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 311, 312, 449, 468, 622, 624, 898, 933, 936, 1244, 1347, 1796, 1866, 1872, 2488, 2694, 2799, 3592, 3732, 4041, 4043, 4976, 5388, 5598, 5837, 7184, 7464, 8082, 8086, 10776, 11196, 11674, 12129, 14928, 16164, 16172, 17511, 21552, 22392, 23348, 24258, 32328, 32344, 35022, 36387, 44784, 46696, 48516, 52533, 64656, 64688, 70044, 72774, 93392, 97032, 105066, 139639, 140088, 145548, 194064, 210132, 279278, 280176, 291096, 418917, 420264, 558556, 582192, 837834, 840528, 1117112, 1256751, 1675668, 1815307, 2234224, 2513502, 3351336, 3630614, 5027004, 5445921, 6702672, 7261228, 10054008, 10891842, 14522456, 16337763, 20108016, 21783684, 29044912, 32675526, 43567368, 65351052, 87134736, 130702104, 261404208]

約数ペア:

[(1, 261404208), (2, 130702104), (3, 87134736), (4, 65351052), (6, 43567368), (8, 32675526), (9, 29044912), (12, 21783684), (13, 20108016), (16, 16337763), (18, 14522456), (24, 10891842), (26, 10054008), (36, 7261228), (39, 6702672), (48, 5445921), (52, 5027004), (72, 3630614), (78, 3351336), (104, 2513502), (117, 2234224), (144, 1815307), (156, 1675668), (208, 1256751), (234, 1117112), (311, 840528), (312, 837834), (449, 582192), (468, 558556), (622, 420264), (624, 418917), (898, 291096), (933, 280176), (936, 279278), (1244, 210132), (1347, 194064), (1796, 145548), (1866, 140088), (1872, 139639), (2488, 105066), (2694, 97032), (2799, 93392), (3592, 72774), (3732, 70044), (4041, 64688), (4043, 64656), (4976, 52533), (5388, 48516), (5598, 46696), (5837, 44784), (7184, 36387), (7464, 35022), (8082, 32344), (8086, 32328), (10776, 24258), (11196, 23348), (11674, 22392), (12129, 21552), (14928, 17511), (16164, 16172)]