20943650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4603}}^1$

素因数の和:4635

約数の個数: 48

約数和(自身を含む): 47955264

約数和(自身を除く): 27011614

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4603, 9206, 23015, 32221, 46030, 59839, 64442, 115075, 119678, 161105, 230150, 299195, 322210, 418873, 598390, 805525, 837746, 1495975, 1611050, 2094365, 2991950, 4188730, 10471825, 20943650]

約数ペア:

[(1, 20943650), (2, 10471825), (5, 4188730), (7, 2991950), (10, 2094365), (13, 1611050), (14, 1495975), (25, 837746), (26, 805525), (35, 598390), (50, 418873), (65, 322210), (70, 299195), (91, 230150), (130, 161105), (175, 119678), (182, 115075), (325, 64442), (350, 59839), (455, 46030), (650, 32221), (910, 23015), (2275, 9206), (4550, 4603)]