291204260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 658450296

約数和(自身を除く): 367246036

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 361, 380, 530, 722, 761, 1007, 1060, 1444, 1522, 1805, 2014, 3044, 3610, 3805, 4028, 5035, 7220, 7610, 10070, 14459, 15220, 19133, 20140, 28918, 38266, 40333, 57836, 72295, 76532, 80666, 95665, 144590, 161332, 191330, 201665, 274721, 289180, 382660, 403330, 549442, 766327, 806660, 1098884, 1373605, 1532654, 2747210, 3065308, 3831635, 5494420, 7663270, 14560213, 15326540, 29120426, 58240852, 72801065, 145602130, 291204260]

約数ペア:

[(1, 291204260), (2, 145602130), (4, 72801065), (5, 58240852), (10, 29120426), (19, 15326540), (20, 14560213), (38, 7663270), (53, 5494420), (76, 3831635), (95, 3065308), (106, 2747210), (190, 1532654), (212, 1373605), (265, 1098884), (361, 806660), (380, 766327), (530, 549442), (722, 403330), (761, 382660), (1007, 289180), (1060, 274721), (1444, 201665), (1522, 191330), (1805, 161332), (2014, 144590), (3044, 95665), (3610, 80666), (3805, 76532), (4028, 72295), (5035, 57836), (7220, 40333), (7610, 38266), (10070, 28918), (14459, 20140), (15220, 19133)]