20739492085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1\times {\mathrm{751}}^1$

素因数の和:1226

約数の個数: 64

約数和(自身を含む): 28804608000

約数和(自身を除く): 8065115915

約数列:

[1, 5, 13, 19, 59, 65, 95, 247, 295, 379, 751, 767, 1121, 1235, 1895, 3755, 3835, 4927, 5605, 7201, 9763, 14269, 14573, 22361, 24635, 36005, 44309, 48815, 71345, 72865, 93613, 111805, 185497, 221545, 284629, 290693, 424859, 468065, 576017, 841871, 927485, 1423145, 1453465, 2124295, 2880085, 3700177, 4209355, 5407951, 5523167, 10944323, 16793111, 18500885, 27039755, 27615835, 54721615, 70303363, 83965555, 218310443, 319069109, 351516815, 1091552215, 1595345545, 4147898417, 20739492085]

約数ペア:

[(1, 20739492085), (5, 4147898417), (13, 1595345545), (19, 1091552215), (59, 351516815), (65, 319069109), (95, 218310443), (247, 83965555), (295, 70303363), (379, 54721615), (751, 27615835), (767, 27039755), (1121, 18500885), (1235, 16793111), (1895, 10944323), (3755, 5523167), (3835, 5407951), (4927, 4209355), (5605, 3700177), (7201, 2880085), (9763, 2124295), (14269, 1453465), (14573, 1423145), (22361, 927485), (24635, 841871), (36005, 576017), (44309, 468065), (48815, 424859), (71345, 290693), (72865, 284629), (93613, 221545), (111805, 185497)]