20284390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 24422426

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 43, 46, 70, 86, 115, 161, 215, 230, 293, 301, 322, 430, 586, 602, 805, 989, 1465, 1505, 1610, 1978, 2051, 2930, 3010, 4102, 4945, 6739, 6923, 9890, 10255, 12599, 13478, 13846, 20510, 25198, 33695, 34615, 47173, 62995, 67390, 69230, 88193, 94346, 125990, 176386, 235865, 289777, 440965, 471730, 579554, 881930, 1448885, 2028439, 2897770, 4056878, 10142195, 20284390]

約数ペア:

[(1, 20284390), (2, 10142195), (5, 4056878), (7, 2897770), (10, 2028439), (14, 1448885), (23, 881930), (35, 579554), (43, 471730), (46, 440965), (70, 289777), (86, 235865), (115, 176386), (161, 125990), (215, 94346), (230, 88193), (293, 69230), (301, 67390), (322, 62995), (430, 47173), (586, 34615), (602, 33695), (805, 25198), (989, 20510), (1465, 13846), (1505, 13478), (1610, 12599), (1978, 10255), (2051, 9890), (2930, 6923), (3010, 6739), (4102, 4945)]