139395980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{114259}}^1$

素因数の和:114329

約数の個数: 24

約数和(自身を含む): 297533040

約数和(自身を除く): 158137060

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 114259, 228518, 457036, 571295, 1142590, 2285180, 6969799, 13939598, 27879196, 34848995, 69697990, 139395980]

約数ペア:

[(1, 139395980), (2, 69697990), (4, 34848995), (5, 27879196), (10, 13939598), (20, 6969799), (61, 2285180), (122, 1142590), (244, 571295), (305, 457036), (610, 228518), (1220, 114259)]