20055564

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 54054000

約数和(自身を除く): 33998436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 109, 114, 171, 218, 228, 269, 327, 342, 436, 538, 654, 684, 807, 981, 1076, 1308, 1614, 1962, 2071, 2421, 3228, 3924, 4142, 4842, 5111, 6213, 8284, 9684, 10222, 12426, 15333, 18639, 20444, 24852, 29321, 30666, 37278, 45999, 58642, 61332, 74556, 87963, 91998, 117284, 175926, 183996, 263889, 351852, 527778, 557099, 1055556, 1114198, 1671297, 2228396, 3342594, 5013891, 6685188, 10027782, 20055564]

約数ペア:

[(1, 20055564), (2, 10027782), (3, 6685188), (4, 5013891), (6, 3342594), (9, 2228396), (12, 1671297), (18, 1114198), (19, 1055556), (36, 557099), (38, 527778), (57, 351852), (76, 263889), (109, 183996), (114, 175926), (171, 117284), (218, 91998), (228, 87963), (269, 74556), (327, 61332), (342, 58642), (436, 45999), (538, 37278), (654, 30666), (684, 29321), (807, 24852), (981, 20444), (1076, 18639), (1308, 15333), (1614, 12426), (1962, 10222), (2071, 9684), (2421, 8284), (3228, 6213), (3924, 5111), (4142, 4842)]