20108650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 40131360

約数和(自身を除く): 20022710

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 61, 95, 122, 190, 305, 347, 475, 610, 694, 950, 1159, 1525, 1735, 2318, 3050, 3470, 5795, 6593, 8675, 11590, 13186, 17350, 21167, 28975, 32965, 42334, 57950, 65930, 105835, 164825, 211670, 329650, 402173, 529175, 804346, 1058350, 2010865, 4021730, 10054325, 20108650]

約数ペア:

[(1, 20108650), (2, 10054325), (5, 4021730), (10, 2010865), (19, 1058350), (25, 804346), (38, 529175), (50, 402173), (61, 329650), (95, 211670), (122, 164825), (190, 105835), (305, 65930), (347, 57950), (475, 42334), (610, 32965), (694, 28975), (950, 21167), (1159, 17350), (1525, 13186), (1735, 11590), (2318, 8675), (3050, 6593), (3470, 5795)]