19501300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2143}}^1$

素因数の和:2177

約数の個数: 72

約数和(自身を含む): 52107776

約数和(自身を除く): 32606476

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2143, 2275, 4286, 4550, 8572, 9100, 10715, 15001, 21430, 27859, 30002, 42860, 53575, 55718, 60004, 75005, 107150, 111436, 139295, 150010, 195013, 214300, 278590, 300020, 375025, 390026, 557180, 696475, 750050, 780052, 975065, 1392950, 1500100, 1950130, 2785900, 3900260, 4875325, 9750650, 19501300]

約数ペア:

[(1, 19501300), (2, 9750650), (4, 4875325), (5, 3900260), (7, 2785900), (10, 1950130), (13, 1500100), (14, 1392950), (20, 975065), (25, 780052), (26, 750050), (28, 696475), (35, 557180), (50, 390026), (52, 375025), (65, 300020), (70, 278590), (91, 214300), (100, 195013), (130, 150010), (140, 139295), (175, 111436), (182, 107150), (260, 75005), (325, 60004), (350, 55718), (364, 53575), (455, 42860), (650, 30002), (700, 27859), (910, 21430), (1300, 15001), (1820, 10715), (2143, 9100), (2275, 8572), (4286, 4550)]