4497220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 11864664

約数和(自身を除く): 7367444

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 353, 364, 455, 490, 637, 706, 910, 980, 1274, 1412, 1765, 1820, 2471, 2548, 3185, 3530, 4589, 4942, 6370, 7060, 9178, 9884, 12355, 12740, 17297, 18356, 22945, 24710, 32123, 34594, 45890, 49420, 64246, 69188, 86485, 91780, 128492, 160615, 172970, 224861, 321230, 345940, 449722, 642460, 899444, 1124305, 2248610, 4497220]

約数ペア:

[(1, 4497220), (2, 2248610), (4, 1124305), (5, 899444), (7, 642460), (10, 449722), (13, 345940), (14, 321230), (20, 224861), (26, 172970), (28, 160615), (35, 128492), (49, 91780), (52, 86485), (65, 69188), (70, 64246), (91, 49420), (98, 45890), (130, 34594), (140, 32123), (182, 24710), (196, 22945), (245, 18356), (260, 17297), (353, 12740), (364, 12355), (455, 9884), (490, 9178), (637, 7060), (706, 6370), (910, 4942), (980, 4589), (1274, 3530), (1412, 3185), (1765, 2548), (1820, 2471)]