21438240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{757}}^1$

素因数の和:834

約数の個数: 96

約数和(自身を含む): 68765760

約数和(自身を除く): 47327520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 80, 96, 118, 120, 160, 177, 236, 240, 295, 354, 472, 480, 590, 708, 757, 885, 944, 1180, 1416, 1514, 1770, 1888, 2271, 2360, 2832, 3028, 3540, 3785, 4542, 4720, 5664, 6056, 7080, 7570, 9084, 9440, 11355, 12112, 14160, 15140, 18168, 22710, 24224, 28320, 30280, 36336, 44663, 45420, 60560, 72672, 89326, 90840, 121120, 133989, 178652, 181680, 223315, 267978, 357304, 363360, 446630, 535956, 669945, 714608, 893260, 1071912, 1339890, 1429216, 1786520, 2143824, 2679780, 3573040, 4287648, 5359560, 7146080, 10719120, 21438240]

約数ペア:

[(1, 21438240), (2, 10719120), (3, 7146080), (4, 5359560), (5, 4287648), (6, 3573040), (8, 2679780), (10, 2143824), (12, 1786520), (15, 1429216), (16, 1339890), (20, 1071912), (24, 893260), (30, 714608), (32, 669945), (40, 535956), (48, 446630), (59, 363360), (60, 357304), (80, 267978), (96, 223315), (118, 181680), (120, 178652), (160, 133989), (177, 121120), (236, 90840), (240, 89326), (295, 72672), (354, 60560), (472, 45420), (480, 44663), (590, 36336), (708, 30280), (757, 28320), (885, 24224), (944, 22710), (1180, 18168), (1416, 15140), (1514, 14160), (1770, 12112), (1888, 11355), (2271, 9440), (2360, 9084), (2832, 7570), (3028, 7080), (3540, 6056), (3785, 5664), (4542, 4720)]