4505540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 72

約数和(自身を含む): 10821888

約数和(自身を除く): 6316348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 62, 65, 86, 124, 130, 155, 169, 172, 215, 260, 310, 338, 403, 430, 559, 620, 676, 806, 845, 860, 1118, 1333, 1612, 1690, 2015, 2236, 2666, 2795, 3380, 4030, 5239, 5332, 5590, 6665, 7267, 8060, 10478, 11180, 13330, 14534, 17329, 20956, 26195, 26660, 29068, 34658, 36335, 52390, 69316, 72670, 86645, 104780, 145340, 173290, 225277, 346580, 450554, 901108, 1126385, 2252770, 4505540]

約数ペア:

[(1, 4505540), (2, 2252770), (4, 1126385), (5, 901108), (10, 450554), (13, 346580), (20, 225277), (26, 173290), (31, 145340), (43, 104780), (52, 86645), (62, 72670), (65, 69316), (86, 52390), (124, 36335), (130, 34658), (155, 29068), (169, 26660), (172, 26195), (215, 20956), (260, 17329), (310, 14534), (338, 13330), (403, 11180), (430, 10478), (559, 8060), (620, 7267), (676, 6665), (806, 5590), (845, 5332), (860, 5239), (1118, 4030), (1333, 3380), (1612, 2795), (1690, 2666), (2015, 2236)]