20141320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 28012280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 439, 620, 740, 878, 1147, 1240, 1480, 1756, 2195, 2294, 3512, 4390, 4588, 5735, 8780, 9176, 11470, 13609, 16243, 17560, 22940, 27218, 32486, 45880, 54436, 64972, 68045, 81215, 108872, 129944, 136090, 162430, 272180, 324860, 503533, 544360, 649720, 1007066, 2014132, 2517665, 4028264, 5035330, 10070660, 20141320]

約数ペア:

[(1, 20141320), (2, 10070660), (4, 5035330), (5, 4028264), (8, 2517665), (10, 2014132), (20, 1007066), (31, 649720), (37, 544360), (40, 503533), (62, 324860), (74, 272180), (124, 162430), (148, 136090), (155, 129944), (185, 108872), (248, 81215), (296, 68045), (310, 64972), (370, 54436), (439, 45880), (620, 32486), (740, 27218), (878, 22940), (1147, 17560), (1240, 16243), (1480, 13609), (1756, 11470), (2195, 9176), (2294, 8780), (3512, 5735), (4390, 4588)]