30721560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11131}}^1$

素因数の和:11168

約数の個数: 64

約数和(自身を含む): 96180480

約数和(自身を除く): 65458920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 11131, 22262, 33393, 44524, 55655, 66786, 89048, 111310, 133572, 166965, 222620, 256013, 267144, 333930, 445240, 512026, 667860, 768039, 1024052, 1280065, 1335720, 1536078, 2048104, 2560130, 3072156, 3840195, 5120260, 6144312, 7680390, 10240520, 15360780, 30721560]

約数ペア:

[(1, 30721560), (2, 15360780), (3, 10240520), (4, 7680390), (5, 6144312), (6, 5120260), (8, 3840195), (10, 3072156), (12, 2560130), (15, 2048104), (20, 1536078), (23, 1335720), (24, 1280065), (30, 1024052), (40, 768039), (46, 667860), (60, 512026), (69, 445240), (92, 333930), (115, 267144), (120, 256013), (138, 222620), (184, 166965), (230, 133572), (276, 111310), (345, 89048), (460, 66786), (552, 55655), (690, 44524), (920, 33393), (1380, 22262), (2760, 11131)]