156923720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 364195440

約数和(自身を除く): 207271720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 122, 146, 244, 292, 305, 365, 488, 584, 610, 730, 881, 1220, 1460, 1762, 2440, 2920, 3524, 4405, 4453, 7048, 8810, 8906, 17620, 17812, 22265, 35240, 35624, 44530, 53741, 64313, 89060, 107482, 128626, 178120, 214964, 257252, 268705, 321565, 429928, 514504, 537410, 643130, 1074820, 1286260, 2149640, 2572520, 3923093, 7846186, 15692372, 19615465, 31384744, 39230930, 78461860, 156923720]

約数ペア:

[(1, 156923720), (2, 78461860), (4, 39230930), (5, 31384744), (8, 19615465), (10, 15692372), (20, 7846186), (40, 3923093), (61, 2572520), (73, 2149640), (122, 1286260), (146, 1074820), (244, 643130), (292, 537410), (305, 514504), (365, 429928), (488, 321565), (584, 268705), (610, 257252), (730, 214964), (881, 178120), (1220, 128626), (1460, 107482), (1762, 89060), (2440, 64313), (2920, 53741), (3524, 44530), (4405, 35624), (4453, 35240), (7048, 22265), (8810, 17812), (8906, 17620)]