18851420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{373}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 47877984

約数和(自身を除く): 29026564

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 373, 380, 532, 665, 722, 746, 1330, 1444, 1492, 1805, 1865, 2527, 2611, 2660, 3610, 3730, 5054, 5222, 7087, 7220, 7460, 10108, 10444, 12635, 13055, 14174, 25270, 26110, 28348, 35435, 49609, 50540, 52220, 70870, 99218, 134653, 141740, 198436, 248045, 269306, 496090, 538612, 673265, 942571, 992180, 1346530, 1885142, 2693060, 3770284, 4712855, 9425710, 18851420]

約数ペア:

[(1, 18851420), (2, 9425710), (4, 4712855), (5, 3770284), (7, 2693060), (10, 1885142), (14, 1346530), (19, 992180), (20, 942571), (28, 673265), (35, 538612), (38, 496090), (70, 269306), (76, 248045), (95, 198436), (133, 141740), (140, 134653), (190, 99218), (266, 70870), (361, 52220), (373, 50540), (380, 49609), (532, 35435), (665, 28348), (722, 26110), (746, 25270), (1330, 14174), (1444, 13055), (1492, 12635), (1805, 10444), (1865, 10108), (2527, 7460), (2611, 7220), (2660, 7087), (3610, 5222), (3730, 5054)]