19087750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{631}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 39338208

約数和(自身を除く): 20250458

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 631, 1210, 1262, 1375, 2750, 3025, 3155, 6050, 6310, 6941, 13882, 15125, 15775, 30250, 31550, 34705, 69410, 76351, 78875, 152702, 157750, 173525, 347050, 381755, 763510, 867625, 1735250, 1908775, 3817550, 9543875, 19087750]

約数ペア:

[(1, 19087750), (2, 9543875), (5, 3817550), (10, 1908775), (11, 1735250), (22, 867625), (25, 763510), (50, 381755), (55, 347050), (110, 173525), (121, 157750), (125, 152702), (242, 78875), (250, 76351), (275, 69410), (550, 34705), (605, 31550), (631, 30250), (1210, 15775), (1262, 15125), (1375, 13882), (2750, 6941), (3025, 6310), (3155, 6050)]