74289020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 174625920

約数和(自身を除く): 100336900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 709, 806, 845, 1418, 1612, 1690, 2015, 2836, 3380, 3545, 4030, 5239, 7090, 8060, 9217, 10478, 14180, 18434, 20956, 21979, 26195, 36868, 43958, 46085, 52390, 87916, 92170, 104780, 109895, 119821, 184340, 219790, 239642, 285727, 439580, 479284, 571454, 599105, 1142908, 1198210, 1428635, 2396420, 2857270, 3714451, 5714540, 7428902, 14857804, 18572255, 37144510, 74289020]

約数ペア:

[(1, 74289020), (2, 37144510), (4, 18572255), (5, 14857804), (10, 7428902), (13, 5714540), (20, 3714451), (26, 2857270), (31, 2396420), (52, 1428635), (62, 1198210), (65, 1142908), (124, 599105), (130, 571454), (155, 479284), (169, 439580), (260, 285727), (310, 239642), (338, 219790), (403, 184340), (620, 119821), (676, 109895), (709, 104780), (806, 92170), (845, 87916), (1418, 52390), (1612, 46085), (1690, 43958), (2015, 36868), (2836, 26195), (3380, 21979), (3545, 20956), (4030, 18434), (5239, 14180), (7090, 10478), (8060, 9217)]