84071420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 181113408

約数和(自身を除く): 97041988

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 137, 244, 274, 305, 503, 548, 610, 685, 1006, 1220, 1370, 2012, 2515, 2740, 5030, 8357, 10060, 16714, 30683, 33428, 41785, 61366, 68911, 83570, 122732, 137822, 153415, 167140, 275644, 306830, 344555, 613660, 689110, 1378220, 4203571, 8407142, 16814284, 21017855, 42035710, 84071420]

約数ペア:

[(1, 84071420), (2, 42035710), (4, 21017855), (5, 16814284), (10, 8407142), (20, 4203571), (61, 1378220), (122, 689110), (137, 613660), (244, 344555), (274, 306830), (305, 275644), (503, 167140), (548, 153415), (610, 137822), (685, 122732), (1006, 83570), (1220, 68911), (1370, 61366), (2012, 41785), (2515, 33428), (2740, 30683), (5030, 16714), (8357, 10060)]