128712640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1553}}^1$

素因数の和:1614

約数の個数: 112

約数和(自身を含む): 359980992

約数和(自身を除く): 231268352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 140, 148, 160, 185, 224, 259, 280, 296, 320, 370, 448, 518, 560, 592, 740, 1036, 1120, 1184, 1295, 1480, 1553, 2072, 2240, 2368, 2590, 2960, 3106, 4144, 5180, 5920, 6212, 7765, 8288, 10360, 10871, 11840, 12424, 15530, 16576, 20720, 21742, 24848, 31060, 41440, 43484, 49696, 54355, 57461, 62120, 82880, 86968, 99392, 108710, 114922, 124240, 173936, 217420, 229844, 248480, 287305, 347872, 402227, 434840, 459688, 496960, 574610, 695744, 804454, 869680, 919376, 1149220, 1608908, 1739360, 1838752, 2011135, 2298440, 3217816, 3478720, 3677504, 4022270, 4596880, 6435632, 8044540, 9193760, 12871264, 16089080, 18387520, 25742528, 32178160, 64356320, 128712640]

約数ペア:

[(1, 128712640), (2, 64356320), (4, 32178160), (5, 25742528), (7, 18387520), (8, 16089080), (10, 12871264), (14, 9193760), (16, 8044540), (20, 6435632), (28, 4596880), (32, 4022270), (35, 3677504), (37, 3478720), (40, 3217816), (56, 2298440), (64, 2011135), (70, 1838752), (74, 1739360), (80, 1608908), (112, 1149220), (140, 919376), (148, 869680), (160, 804454), (185, 695744), (224, 574610), (259, 496960), (280, 459688), (296, 434840), (320, 402227), (370, 347872), (448, 287305), (518, 248480), (560, 229844), (592, 217420), (740, 173936), (1036, 124240), (1120, 114922), (1184, 108710), (1295, 99392), (1480, 86968), (1553, 82880), (2072, 62120), (2240, 57461), (2368, 54355), (2590, 49696), (2960, 43484), (3106, 41440), (4144, 31060), (5180, 24848), (5920, 21742), (6212, 20720), (7765, 16576), (8288, 15530), (10360, 12424), (10871, 11840)]