81763668

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 250233984

約数和(自身を除く): 168470316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 61, 63, 81, 84, 108, 122, 126, 162, 183, 189, 197, 243, 244, 252, 324, 366, 378, 394, 427, 486, 549, 567, 591, 732, 756, 788, 854, 972, 1098, 1134, 1182, 1281, 1379, 1647, 1701, 1708, 1773, 2196, 2268, 2364, 2562, 2758, 3294, 3402, 3546, 3843, 4137, 4941, 5124, 5319, 5516, 6588, 6804, 7092, 7686, 8274, 9882, 10638, 11529, 12017, 12411, 14823, 15372, 15957, 16548, 19764, 21276, 23058, 24034, 24822, 29646, 31914, 34587, 36051, 37233, 46116, 47871, 48068, 49644, 59292, 63828, 69174, 72102, 74466, 84119, 95742, 103761, 108153, 111699, 138348, 144204, 148932, 168238, 191484, 207522, 216306, 223398, 252357, 324459, 335097, 336476, 415044, 432612, 446796, 504714, 648918, 670194, 757071, 973377, 1009428, 1297836, 1340388, 1514142, 1946754, 2271213, 2920131, 3028284, 3893508, 4542426, 5840262, 6813639, 9084852, 11680524, 13627278, 20440917, 27254556, 40881834, 81763668]

約数ペア:

[(1, 81763668), (2, 40881834), (3, 27254556), (4, 20440917), (6, 13627278), (7, 11680524), (9, 9084852), (12, 6813639), (14, 5840262), (18, 4542426), (21, 3893508), (27, 3028284), (28, 2920131), (36, 2271213), (42, 1946754), (54, 1514142), (61, 1340388), (63, 1297836), (81, 1009428), (84, 973377), (108, 757071), (122, 670194), (126, 648918), (162, 504714), (183, 446796), (189, 432612), (197, 415044), (243, 336476), (244, 335097), (252, 324459), (324, 252357), (366, 223398), (378, 216306), (394, 207522), (427, 191484), (486, 168238), (549, 148932), (567, 144204), (591, 138348), (732, 111699), (756, 108153), (788, 103761), (854, 95742), (972, 84119), (1098, 74466), (1134, 72102), (1182, 69174), (1281, 63828), (1379, 59292), (1647, 49644), (1701, 48068), (1708, 47871), (1773, 46116), (2196, 37233), (2268, 36051), (2364, 34587), (2562, 31914), (2758, 29646), (3294, 24822), (3402, 24034), (3546, 23058), (3843, 21276), (4137, 19764), (4941, 16548), (5124, 15957), (5319, 15372), (5516, 14823), (6588, 12411), (6804, 12017), (7092, 11529), (7686, 10638), (8274, 9882)]