21722320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 54996480

約数和(自身を除く): 33274160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 461, 496, 589, 620, 760, 922, 1178, 1240, 1520, 1844, 2305, 2356, 2480, 2945, 3688, 4610, 4712, 5890, 7376, 8759, 9220, 9424, 11780, 14291, 17518, 18440, 23560, 28582, 35036, 36880, 43795, 47120, 57164, 70072, 71455, 87590, 114328, 140144, 142910, 175180, 228656, 271529, 285820, 350360, 543058, 571640, 700720, 1086116, 1143280, 1357645, 2172232, 2715290, 4344464, 5430580, 10861160, 21722320]

約数ペア:

[(1, 21722320), (2, 10861160), (4, 5430580), (5, 4344464), (8, 2715290), (10, 2172232), (16, 1357645), (19, 1143280), (20, 1086116), (31, 700720), (38, 571640), (40, 543058), (62, 350360), (76, 285820), (80, 271529), (95, 228656), (124, 175180), (152, 142910), (155, 140144), (190, 114328), (248, 87590), (304, 71455), (310, 70072), (380, 57164), (461, 47120), (496, 43795), (589, 36880), (620, 35036), (760, 28582), (922, 23560), (1178, 18440), (1240, 17518), (1520, 14291), (1844, 11780), (2305, 9424), (2356, 9220), (2480, 8759), (2945, 7376), (3688, 5890), (4610, 4712)]