257931828

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 144

約数和(自身を含む): 820659840

約数和(自身を除く): 562728012

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 121, 126, 132, 154, 198, 231, 242, 252, 308, 363, 396, 462, 484, 693, 726, 769, 847, 924, 1089, 1331, 1386, 1452, 1538, 1694, 2178, 2307, 2541, 2662, 2772, 3076, 3388, 3993, 4356, 4614, 5082, 5324, 5383, 6921, 7623, 7986, 8459, 9228, 9317, 10164, 10766, 11979, 13842, 15246, 15972, 16149, 16918, 18634, 21532, 23958, 25377, 27684, 27951, 30492, 32298, 33836, 37268, 47916, 48447, 50754, 55902, 59213, 64596, 76131, 83853, 93049, 96894, 101508, 111804, 118426, 152262, 167706, 177639, 186098, 193788, 236852, 279147, 304524, 335412, 355278, 372196, 532917, 558294, 651343, 710556, 837441, 1023539, 1065834, 1116588, 1302686, 1674882, 1954029, 2047078, 2131668, 2605372, 3070617, 3349764, 3908058, 4094156, 5862087, 6141234, 7164773, 7816116, 9211851, 11724174, 12282468, 14329546, 18423702, 21494319, 23448348, 28659092, 36847404, 42988638, 64482957, 85977276, 128965914, 257931828]

約数ペア:

[(1, 257931828), (2, 128965914), (3, 85977276), (4, 64482957), (6, 42988638), (7, 36847404), (9, 28659092), (11, 23448348), (12, 21494319), (14, 18423702), (18, 14329546), (21, 12282468), (22, 11724174), (28, 9211851), (33, 7816116), (36, 7164773), (42, 6141234), (44, 5862087), (63, 4094156), (66, 3908058), (77, 3349764), (84, 3070617), (99, 2605372), (121, 2131668), (126, 2047078), (132, 1954029), (154, 1674882), (198, 1302686), (231, 1116588), (242, 1065834), (252, 1023539), (308, 837441), (363, 710556), (396, 651343), (462, 558294), (484, 532917), (693, 372196), (726, 355278), (769, 335412), (847, 304524), (924, 279147), (1089, 236852), (1331, 193788), (1386, 186098), (1452, 177639), (1538, 167706), (1694, 152262), (2178, 118426), (2307, 111804), (2541, 101508), (2662, 96894), (2772, 93049), (3076, 83853), (3388, 76131), (3993, 64596), (4356, 59213), (4614, 55902), (5082, 50754), (5324, 48447), (5383, 47916), (6921, 37268), (7623, 33836), (7986, 32298), (8459, 30492), (9228, 27951), (9317, 27684), (10164, 25377), (10766, 23958), (11979, 21532), (13842, 18634), (15246, 16918), (15972, 16149)]