19515100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 46903248

約数和(自身を除く): 27388148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 113, 157, 220, 226, 275, 314, 452, 550, 565, 628, 785, 1100, 1130, 1243, 1570, 1727, 2260, 2486, 2825, 3140, 3454, 3925, 4972, 5650, 6215, 6908, 7850, 8635, 11300, 12430, 15700, 17270, 17741, 24860, 31075, 34540, 35482, 43175, 62150, 70964, 86350, 88705, 124300, 172700, 177410, 195151, 354820, 390302, 443525, 780604, 887050, 975755, 1774100, 1951510, 3903020, 4878775, 9757550, 19515100]

約数ペア:

[(1, 19515100), (2, 9757550), (4, 4878775), (5, 3903020), (10, 1951510), (11, 1774100), (20, 975755), (22, 887050), (25, 780604), (44, 443525), (50, 390302), (55, 354820), (100, 195151), (110, 177410), (113, 172700), (157, 124300), (220, 88705), (226, 86350), (275, 70964), (314, 62150), (452, 43175), (550, 35482), (565, 34540), (628, 31075), (785, 24860), (1100, 17741), (1130, 17270), (1243, 15700), (1570, 12430), (1727, 11300), (2260, 8635), (2486, 7850), (2825, 6908), (3140, 6215), (3454, 5650), (3925, 4972)]