72156916

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:820

約数の個数: 36

約数和(自身を含む): 137748492

約数和(自身を除く): 65591576

約数列:

[1, 2, 4, 13, 26, 52, 169, 173, 338, 346, 617, 676, 692, 1234, 2249, 2468, 4498, 8021, 8996, 16042, 29237, 32084, 58474, 104273, 106741, 116948, 208546, 213482, 417092, 426964, 1387633, 2775266, 5550532, 18039229, 36078458, 72156916]

約数ペア:

[(1, 72156916), (2, 36078458), (4, 18039229), (13, 5550532), (26, 2775266), (52, 1387633), (169, 426964), (173, 417092), (338, 213482), (346, 208546), (617, 116948), (676, 106741), (692, 104273), (1234, 58474), (2249, 32084), (2468, 29237), (4498, 16042), (8021, 8996)]