261373560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{821}}^1$

素因数の和:1221

約数の個数: 128

約数和(自身を含む): 899596800

約数和(自身を除く): 638223240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 379, 420, 758, 821, 840, 1137, 1516, 1642, 1895, 2274, 2463, 2653, 3032, 3284, 3790, 4105, 4548, 4926, 5306, 5685, 5747, 6568, 7580, 7959, 8210, 9096, 9852, 10612, 11370, 11494, 12315, 13265, 15160, 15918, 16420, 17241, 19704, 21224, 22740, 22988, 24630, 26530, 28735, 31836, 32840, 34482, 39795, 45480, 45976, 49260, 53060, 57470, 63672, 68964, 79590, 86205, 98520, 106120, 114940, 137928, 159180, 172410, 229880, 311159, 318360, 344820, 622318, 689640, 933477, 1244636, 1555795, 1866954, 2178113, 2489272, 3111590, 3733908, 4356226, 4667385, 6223180, 6534339, 7467816, 8712452, 9334770, 10890565, 12446360, 13068678, 17424904, 18669540, 21781130, 26137356, 32671695, 37339080, 43562260, 52274712, 65343390, 87124520, 130686780, 261373560]

約数ペア:

[(1, 261373560), (2, 130686780), (3, 87124520), (4, 65343390), (5, 52274712), (6, 43562260), (7, 37339080), (8, 32671695), (10, 26137356), (12, 21781130), (14, 18669540), (15, 17424904), (20, 13068678), (21, 12446360), (24, 10890565), (28, 9334770), (30, 8712452), (35, 7467816), (40, 6534339), (42, 6223180), (56, 4667385), (60, 4356226), (70, 3733908), (84, 3111590), (105, 2489272), (120, 2178113), (140, 1866954), (168, 1555795), (210, 1244636), (280, 933477), (379, 689640), (420, 622318), (758, 344820), (821, 318360), (840, 311159), (1137, 229880), (1516, 172410), (1642, 159180), (1895, 137928), (2274, 114940), (2463, 106120), (2653, 98520), (3032, 86205), (3284, 79590), (3790, 68964), (4105, 63672), (4548, 57470), (4926, 53060), (5306, 49260), (5685, 45976), (5747, 45480), (6568, 39795), (7580, 34482), (7959, 32840), (8210, 31836), (9096, 28735), (9852, 26530), (10612, 24630), (11370, 22988), (11494, 22740), (12315, 21224), (13265, 19704), (15160, 17241), (15918, 16420)]