131831280

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{8719}}^1$

素因数の和:8748

約数の個数: 160

約数和(自身を含む): 519014400

約数和(自身を除く): 387183120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 8719, 15120, 17438, 26157, 34876, 43595, 52314, 61033, 69752, 78471, 87190, 104628, 122066, 130785, 139504, 156942, 174380, 183099, 209256, 235413, 244132, 261570, 305165, 313884, 348760, 366198, 392355, 418512, 470826, 488264, 523140, 549297, 610330, 627768, 697520, 732396, 784710, 915495, 941652, 976528, 1046280, 1098594, 1177065, 1220660, 1255536, 1464792, 1569420, 1647891, 1830990, 1883304, 2092560, 2197188, 2354130, 2441320, 2746485, 2929584, 3138840, 3295782, 3661980, 3766608, 4394376, 4708260, 4882640, 5492970, 6277680, 6591564, 7323960, 8239455, 8788752, 9416520, 10985940, 13183128, 14647920, 16478910, 18833040, 21971880, 26366256, 32957820, 43943760, 65915640, 131831280]

約数ペア:

[(1, 131831280), (2, 65915640), (3, 43943760), (4, 32957820), (5, 26366256), (6, 21971880), (7, 18833040), (8, 16478910), (9, 14647920), (10, 13183128), (12, 10985940), (14, 9416520), (15, 8788752), (16, 8239455), (18, 7323960), (20, 6591564), (21, 6277680), (24, 5492970), (27, 4882640), (28, 4708260), (30, 4394376), (35, 3766608), (36, 3661980), (40, 3295782), (42, 3138840), (45, 2929584), (48, 2746485), (54, 2441320), (56, 2354130), (60, 2197188), (63, 2092560), (70, 1883304), (72, 1830990), (80, 1647891), (84, 1569420), (90, 1464792), (105, 1255536), (108, 1220660), (112, 1177065), (120, 1098594), (126, 1046280), (135, 976528), (140, 941652), (144, 915495), (168, 784710), (180, 732396), (189, 697520), (210, 627768), (216, 610330), (240, 549297), (252, 523140), (270, 488264), (280, 470826), (315, 418512), (336, 392355), (360, 366198), (378, 348760), (420, 313884), (432, 305165), (504, 261570), (540, 244132), (560, 235413), (630, 209256), (720, 183099), (756, 174380), (840, 156942), (945, 139504), (1008, 130785), (1080, 122066), (1260, 104628), (1512, 87190), (1680, 78471), (1890, 69752), (2160, 61033), (2520, 52314), (3024, 43595), (3780, 34876), (5040, 26157), (7560, 17438), (8719, 15120)]