64285220

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 138559680

約数和(自身を除く): 74274460

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 157, 236, 295, 314, 347, 590, 628, 694, 785, 1180, 1388, 1570, 1735, 3140, 3470, 6940, 9263, 18526, 20473, 37052, 40946, 46315, 54479, 81892, 92630, 102365, 108958, 185260, 204730, 217916, 272395, 409460, 544790, 1089580, 3214261, 6428522, 12857044, 16071305, 32142610, 64285220]

約数ペア:

[(1, 64285220), (2, 32142610), (4, 16071305), (5, 12857044), (10, 6428522), (20, 3214261), (59, 1089580), (118, 544790), (157, 409460), (236, 272395), (295, 217916), (314, 204730), (347, 185260), (590, 108958), (628, 102365), (694, 92630), (785, 81892), (1180, 54479), (1388, 46315), (1570, 40946), (1735, 37052), (3140, 20473), (3470, 18526), (6940, 9263)]