991231410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3181}}^1$

素因数の和:3268

約数の個数: 128

約数和(自身を含む): 2771241984

約数和(自身を除く): 1780010574

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 47, 51, 65, 78, 85, 94, 102, 130, 141, 170, 195, 221, 235, 255, 282, 390, 442, 470, 510, 611, 663, 705, 799, 1105, 1222, 1326, 1410, 1598, 1833, 2210, 2397, 3055, 3181, 3315, 3666, 3995, 4794, 6110, 6362, 6630, 7990, 9165, 9543, 10387, 11985, 15905, 18330, 19086, 20774, 23970, 31161, 31810, 41353, 47715, 51935, 54077, 62322, 82706, 95430, 103870, 108154, 124059, 149507, 155805, 162231, 206765, 248118, 270385, 299014, 311610, 324462, 413530, 448521, 540770, 620295, 703001, 747535, 811155, 897042, 1240590, 1406002, 1495070, 1622310, 1943591, 2109003, 2242605, 2541619, 3515005, 3887182, 4218006, 4485210, 5083238, 5830773, 7030010, 7624857, 9717955, 10545015, 11661546, 12708095, 15249714, 19435910, 21090030, 25416190, 29153865, 33041047, 38124285, 58307730, 66082094, 76248570, 99123141, 165205235, 198246282, 330410470, 495615705, 991231410]

約数ペア:

[(1, 991231410), (2, 495615705), (3, 330410470), (5, 198246282), (6, 165205235), (10, 99123141), (13, 76248570), (15, 66082094), (17, 58307730), (26, 38124285), (30, 33041047), (34, 29153865), (39, 25416190), (47, 21090030), (51, 19435910), (65, 15249714), (78, 12708095), (85, 11661546), (94, 10545015), (102, 9717955), (130, 7624857), (141, 7030010), (170, 5830773), (195, 5083238), (221, 4485210), (235, 4218006), (255, 3887182), (282, 3515005), (390, 2541619), (442, 2242605), (470, 2109003), (510, 1943591), (611, 1622310), (663, 1495070), (705, 1406002), (799, 1240590), (1105, 897042), (1222, 811155), (1326, 747535), (1410, 703001), (1598, 620295), (1833, 540770), (2210, 448521), (2397, 413530), (3055, 324462), (3181, 311610), (3315, 299014), (3666, 270385), (3995, 248118), (4794, 206765), (6110, 162231), (6362, 155805), (6630, 149507), (7990, 124059), (9165, 108154), (9543, 103870), (10387, 95430), (11985, 82706), (15905, 62322), (18330, 54077), (19086, 51935), (20774, 47715), (23970, 41353), (31161, 31810)]