815087240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:411

約数の個数: 128

約数和(自身を含む): 2052864000

約数和(自身を除く): 1237776760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 131, 158, 179, 220, 262, 316, 358, 395, 440, 524, 632, 655, 716, 790, 869, 895, 1048, 1310, 1432, 1441, 1580, 1738, 1790, 1969, 2620, 2882, 3160, 3476, 3580, 3938, 4345, 5240, 5764, 6952, 7160, 7205, 7876, 8690, 9845, 10349, 11528, 14141, 14410, 15752, 17380, 19690, 20698, 23449, 28282, 28820, 34760, 39380, 41396, 46898, 51745, 56564, 57640, 70705, 78760, 82792, 93796, 103490, 113128, 113839, 117245, 141410, 155551, 187592, 206980, 227678, 234490, 257939, 282820, 311102, 413960, 455356, 468980, 515878, 565640, 569195, 622204, 777755, 910712, 937960, 1031756, 1138390, 1244408, 1289695, 1555510, 1852471, 2063512, 2276780, 2579390, 3111020, 3704942, 4553560, 5158780, 6222040, 7409884, 9262355, 10317560, 14819768, 18524710, 20377181, 37049420, 40754362, 74098840, 81508724, 101885905, 163017448, 203771810, 407543620, 815087240]

約数ペア:

[(1, 815087240), (2, 407543620), (4, 203771810), (5, 163017448), (8, 101885905), (10, 81508724), (11, 74098840), (20, 40754362), (22, 37049420), (40, 20377181), (44, 18524710), (55, 14819768), (79, 10317560), (88, 9262355), (110, 7409884), (131, 6222040), (158, 5158780), (179, 4553560), (220, 3704942), (262, 3111020), (316, 2579390), (358, 2276780), (395, 2063512), (440, 1852471), (524, 1555510), (632, 1289695), (655, 1244408), (716, 1138390), (790, 1031756), (869, 937960), (895, 910712), (1048, 777755), (1310, 622204), (1432, 569195), (1441, 565640), (1580, 515878), (1738, 468980), (1790, 455356), (1969, 413960), (2620, 311102), (2882, 282820), (3160, 257939), (3476, 234490), (3580, 227678), (3938, 206980), (4345, 187592), (5240, 155551), (5764, 141410), (6952, 117245), (7160, 113839), (7205, 113128), (7876, 103490), (8690, 93796), (9845, 82792), (10349, 78760), (11528, 70705), (14141, 57640), (14410, 56564), (15752, 51745), (17380, 46898), (19690, 41396), (20698, 39380), (23449, 34760), (28282, 28820)]