18815280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7127}}^1$

素因数の和:7154

約数の個数: 80

約数和(自身を含む): 63638784

約数和(自身を除く): 44823504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7127, 14254, 21381, 28508, 35635, 42762, 57016, 71270, 78397, 85524, 106905, 114032, 142540, 156794, 171048, 213810, 235191, 285080, 313588, 342096, 391985, 427620, 470382, 570160, 627176, 783970, 855240, 940764, 1175955, 1254352, 1567940, 1710480, 1881528, 2351910, 3135880, 3763056, 4703820, 6271760, 9407640, 18815280]

約数ペア:

[(1, 18815280), (2, 9407640), (3, 6271760), (4, 4703820), (5, 3763056), (6, 3135880), (8, 2351910), (10, 1881528), (11, 1710480), (12, 1567940), (15, 1254352), (16, 1175955), (20, 940764), (22, 855240), (24, 783970), (30, 627176), (33, 570160), (40, 470382), (44, 427620), (48, 391985), (55, 342096), (60, 313588), (66, 285080), (80, 235191), (88, 213810), (110, 171048), (120, 156794), (132, 142540), (165, 114032), (176, 106905), (220, 85524), (240, 78397), (264, 71270), (330, 57016), (440, 42762), (528, 35635), (660, 28508), (880, 21381), (1320, 14254), (2640, 7127)]