19567860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25087}}^1$

素因数の和:25112

約数の個数: 48

約数和(自身を含む): 59006976

約数和(自身を除く): 39439116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25087, 50174, 75261, 100348, 125435, 150522, 250870, 301044, 326131, 376305, 501740, 652262, 752610, 978393, 1304524, 1505220, 1630655, 1956786, 3261310, 3913572, 4891965, 6522620, 9783930, 19567860]

約数ペア:

[(1, 19567860), (2, 9783930), (3, 6522620), (4, 4891965), (5, 3913572), (6, 3261310), (10, 1956786), (12, 1630655), (13, 1505220), (15, 1304524), (20, 978393), (26, 752610), (30, 652262), (39, 501740), (52, 376305), (60, 326131), (65, 301044), (78, 250870), (130, 150522), (156, 125435), (195, 100348), (260, 75261), (390, 50174), (780, 25087)]