78880515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 150377472

約数和(自身を除く): 71496957

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 73, 105, 123, 205, 219, 251, 287, 365, 511, 615, 753, 861, 1095, 1255, 1435, 1533, 1757, 2555, 2993, 3765, 4305, 5271, 7665, 8785, 8979, 10291, 14965, 18323, 20951, 26355, 30873, 44895, 51455, 54969, 62853, 72037, 91615, 104755, 128261, 154365, 216111, 274845, 314265, 360185, 384783, 641305, 751243, 1080555, 1923915, 2253729, 3756215, 5258701, 11268645, 15776103, 26293505, 78880515]

約数ペア:

[(1, 78880515), (3, 26293505), (5, 15776103), (7, 11268645), (15, 5258701), (21, 3756215), (35, 2253729), (41, 1923915), (73, 1080555), (105, 751243), (123, 641305), (205, 384783), (219, 360185), (251, 314265), (287, 274845), (365, 216111), (511, 154365), (615, 128261), (753, 104755), (861, 91615), (1095, 72037), (1255, 62853), (1435, 54969), (1533, 51455), (1757, 44895), (2555, 30873), (2993, 26355), (3765, 20951), (4305, 18323), (5271, 14965), (7665, 10291), (8785, 8979)]