19835900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 50413440

約数和(自身を除く): 30577540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 659, 700, 860, 1075, 1204, 1318, 1505, 2150, 2636, 3010, 3295, 4300, 4613, 6020, 6590, 7525, 9226, 13180, 15050, 16475, 18452, 23065, 28337, 30100, 32950, 46130, 56674, 65900, 92260, 113348, 115325, 141685, 198359, 230650, 283370, 396718, 461300, 566740, 708425, 793436, 991795, 1416850, 1983590, 2833700, 3967180, 4958975, 9917950, 19835900]

約数ペア:

[(1, 19835900), (2, 9917950), (4, 4958975), (5, 3967180), (7, 2833700), (10, 1983590), (14, 1416850), (20, 991795), (25, 793436), (28, 708425), (35, 566740), (43, 461300), (50, 396718), (70, 283370), (86, 230650), (100, 198359), (140, 141685), (172, 115325), (175, 113348), (215, 92260), (301, 65900), (350, 56674), (430, 46130), (602, 32950), (659, 30100), (700, 28337), (860, 23065), (1075, 18452), (1204, 16475), (1318, 15050), (1505, 13180), (2150, 9226), (2636, 7525), (3010, 6590), (3295, 6020), (4300, 4613)]