77821360

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 189309312

約数和(自身を除く): 111487952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 122, 148, 185, 244, 296, 305, 370, 431, 488, 592, 610, 740, 862, 976, 1220, 1480, 1724, 2155, 2257, 2440, 2960, 3448, 4310, 4514, 4880, 6896, 8620, 9028, 11285, 15947, 17240, 18056, 22570, 26291, 31894, 34480, 36112, 45140, 52582, 63788, 79735, 90280, 105164, 127576, 131455, 159470, 180560, 210328, 255152, 262910, 318940, 420656, 525820, 637880, 972767, 1051640, 1275760, 1945534, 2103280, 3891068, 4863835, 7782136, 9727670, 15564272, 19455340, 38910680, 77821360]

約数ペア:

[(1, 77821360), (2, 38910680), (4, 19455340), (5, 15564272), (8, 9727670), (10, 7782136), (16, 4863835), (20, 3891068), (37, 2103280), (40, 1945534), (61, 1275760), (74, 1051640), (80, 972767), (122, 637880), (148, 525820), (185, 420656), (244, 318940), (296, 262910), (305, 255152), (370, 210328), (431, 180560), (488, 159470), (592, 131455), (610, 127576), (740, 105164), (862, 90280), (976, 79735), (1220, 63788), (1480, 52582), (1724, 45140), (2155, 36112), (2257, 34480), (2440, 31894), (2960, 26291), (3448, 22570), (4310, 18056), (4514, 17240), (4880, 15947), (6896, 11285), (8620, 9028)]