248519180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19507}}^1$

素因数の和:19543

約数の個数: 72

約数和(自身を含む): 653830128

約数和(自身を除く): 405310948

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, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 19507, 39014, 78028, 97535, 136549, 195070, 253591, 273098, 390140, 507182, 546196, 682745, 955843, 1014364, 1267955, 1365490, 1775137, 1911686, 2535910, 2730980, 3550274, 3823372, 4779215, 5071820, 7100548, 8875685, 9558430, 12425959, 17751370, 19116860, 24851918, 35502740, 49703836, 62129795, 124259590, 248519180]

約数ペア:

[(1, 248519180), (2, 124259590), (4, 62129795), (5, 49703836), (7, 35502740), (10, 24851918), (13, 19116860), (14, 17751370), (20, 12425959), (26, 9558430), (28, 8875685), (35, 7100548), (49, 5071820), (52, 4779215), (65, 3823372), (70, 3550274), (91, 2730980), (98, 2535910), (130, 1911686), (140, 1775137), (182, 1365490), (196, 1267955), (245, 1014364), (260, 955843), (364, 682745), (455, 546196), (490, 507182), (637, 390140), (910, 273098), (980, 253591), (1274, 195070), (1820, 136549), (2548, 97535), (3185, 78028), (6370, 39014), (12740, 19507)]