856290380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1\times {\mathrm{1069}}^1$

素因数の和:1431

約数の個数: 72

約数和(自身を含む): 1984370640

約数和(自身を除く): 1128080260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 331, 484, 605, 662, 1069, 1210, 1324, 1655, 2138, 2420, 3310, 3641, 4276, 5345, 6620, 7282, 10690, 11759, 14564, 18205, 21380, 23518, 36410, 40051, 47036, 58795, 72820, 80102, 117590, 129349, 160204, 200255, 235180, 258698, 353839, 400510, 517396, 646745, 707678, 801020, 1293490, 1415356, 1769195, 2586980, 3538390, 3892229, 7076780, 7784458, 15568916, 19461145, 38922290, 42814519, 77844580, 85629038, 171258076, 214072595, 428145190, 856290380]

約数ペア:

[(1, 856290380), (2, 428145190), (4, 214072595), (5, 171258076), (10, 85629038), (11, 77844580), (20, 42814519), (22, 38922290), (44, 19461145), (55, 15568916), (110, 7784458), (121, 7076780), (220, 3892229), (242, 3538390), (331, 2586980), (484, 1769195), (605, 1415356), (662, 1293490), (1069, 801020), (1210, 707678), (1324, 646745), (1655, 517396), (2138, 400510), (2420, 353839), (3310, 258698), (3641, 235180), (4276, 200255), (5345, 160204), (6620, 129349), (7282, 117590), (10690, 80102), (11759, 72820), (14564, 58795), (18205, 47036), (21380, 40051), (23518, 36410)]