81607890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:376

約数の個数: 128

約数和(自身を含む): 243855360

約数和(自身を除く): 162247470

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 167, 179, 182, 195, 210, 273, 334, 358, 390, 455, 501, 537, 546, 835, 895, 910, 1002, 1074, 1169, 1253, 1365, 1670, 1790, 2171, 2327, 2338, 2505, 2506, 2685, 2730, 3507, 3759, 4342, 4654, 5010, 5370, 5845, 6265, 6513, 6981, 7014, 7518, 10855, 11635, 11690, 12530, 13026, 13962, 15197, 16289, 17535, 18795, 21710, 23270, 29893, 30394, 32565, 32578, 34905, 35070, 37590, 45591, 48867, 59786, 65130, 69810, 75985, 81445, 89679, 91182, 97734, 149465, 151970, 162890, 179358, 209251, 227955, 244335, 298930, 388609, 418502, 448395, 455910, 488670, 627753, 777218, 896790, 1046255, 1165827, 1255506, 1943045, 2092510, 2331654, 2720263, 3138765, 3886090, 5440526, 5829135, 6277530, 8160789, 11658270, 13601315, 16321578, 27202630, 40803945, 81607890]

約数ペア:

[(1, 81607890), (2, 40803945), (3, 27202630), (5, 16321578), (6, 13601315), (7, 11658270), (10, 8160789), (13, 6277530), (14, 5829135), (15, 5440526), (21, 3886090), (26, 3138765), (30, 2720263), (35, 2331654), (39, 2092510), (42, 1943045), (65, 1255506), (70, 1165827), (78, 1046255), (91, 896790), (105, 777218), (130, 627753), (167, 488670), (179, 455910), (182, 448395), (195, 418502), (210, 388609), (273, 298930), (334, 244335), (358, 227955), (390, 209251), (455, 179358), (501, 162890), (537, 151970), (546, 149465), (835, 97734), (895, 91182), (910, 89679), (1002, 81445), (1074, 75985), (1169, 69810), (1253, 65130), (1365, 59786), (1670, 48867), (1790, 45591), (2171, 37590), (2327, 35070), (2338, 34905), (2505, 32578), (2506, 32565), (2685, 30394), (2730, 29893), (3507, 23270), (3759, 21710), (4342, 18795), (4654, 17535), (5010, 16289), (5370, 15197), (5845, 13962), (6265, 13026), (6513, 12530), (6981, 11690), (7014, 11635), (7518, 10855)]