261391860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{509}}^1$

素因数の和:847

約数の個数: 120

約数和(自身を含む): 824198760

約数和(自身を除く): 562806900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 317, 324, 405, 509, 540, 634, 810, 951, 1018, 1268, 1527, 1585, 1620, 1902, 2036, 2545, 2853, 3054, 3170, 3804, 4581, 4755, 5090, 5706, 6108, 6340, 7635, 8559, 9162, 9510, 10180, 11412, 13743, 14265, 15270, 17118, 18324, 19020, 22905, 25677, 27486, 28530, 30540, 34236, 41229, 42795, 45810, 51354, 54972, 57060, 68715, 82458, 85590, 91620, 102708, 128385, 137430, 161353, 164916, 171180, 206145, 256770, 274860, 322706, 412290, 484059, 513540, 645412, 806765, 824580, 968118, 1452177, 1613530, 1936236, 2420295, 2904354, 3227060, 4356531, 4840590, 5808708, 7260885, 8713062, 9681180, 13069593, 14521770, 17426124, 21782655, 26139186, 29043540, 43565310, 52278372, 65347965, 87130620, 130695930, 261391860]

約数ペア:

[(1, 261391860), (2, 130695930), (3, 87130620), (4, 65347965), (5, 52278372), (6, 43565310), (9, 29043540), (10, 26139186), (12, 21782655), (15, 17426124), (18, 14521770), (20, 13069593), (27, 9681180), (30, 8713062), (36, 7260885), (45, 5808708), (54, 4840590), (60, 4356531), (81, 3227060), (90, 2904354), (108, 2420295), (135, 1936236), (162, 1613530), (180, 1452177), (270, 968118), (317, 824580), (324, 806765), (405, 645412), (509, 513540), (540, 484059), (634, 412290), (810, 322706), (951, 274860), (1018, 256770), (1268, 206145), (1527, 171180), (1585, 164916), (1620, 161353), (1902, 137430), (2036, 128385), (2545, 102708), (2853, 91620), (3054, 85590), (3170, 82458), (3804, 68715), (4581, 57060), (4755, 54972), (5090, 51354), (5706, 45810), (6108, 42795), (6340, 41229), (7635, 34236), (8559, 30540), (9162, 28530), (9510, 27486), (10180, 25677), (11412, 22905), (13743, 19020), (14265, 18324), (15270, 17118)]