7201990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 13680576

約数和(自身を除く): 6478586

約数列:

[1, 2, 5, 10, 23, 46, 115, 173, 181, 230, 346, 362, 865, 905, 1730, 1810, 3979, 4163, 7958, 8326, 19895, 20815, 31313, 39790, 41630, 62626, 156565, 313130, 720199, 1440398, 3600995, 7201990]

約数ペア:

[(1, 7201990), (2, 3600995), (5, 1440398), (10, 720199), (23, 313130), (46, 156565), (115, 62626), (173, 41630), (181, 39790), (230, 31313), (346, 20815), (362, 19895), (865, 8326), (905, 7958), (1730, 4163), (1810, 3979)]