256137840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{50821}}^1$

素因数の和:50847

約数の個数: 120

約数和(自身を含む): 983100768

約数和(自身を除く): 726962928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 50821, 101642, 152463, 203284, 254105, 304926, 355747, 406568, 457389, 508210, 609852, 711494, 762315, 813136, 914778, 1016420, 1067241, 1219704, 1422988, 1524630, 1778735, 1829556, 2032840, 2134482, 2286945, 2439408, 2845976, 3049260, 3201723, 3557470, 3659112, 4065680, 4268964, 4573890, 5336205, 5691952, 6098520, 6403446, 7114940, 7318224, 8537928, 9147780, 10672410, 12197040, 12806892, 14229880, 16008615, 17075856, 18295560, 21344820, 25613784, 28459760, 32017230, 36591120, 42689640, 51227568, 64034460, 85379280, 128068920, 256137840]

約数ペア:

[(1, 256137840), (2, 128068920), (3, 85379280), (4, 64034460), (5, 51227568), (6, 42689640), (7, 36591120), (8, 32017230), (9, 28459760), (10, 25613784), (12, 21344820), (14, 18295560), (15, 17075856), (16, 16008615), (18, 14229880), (20, 12806892), (21, 12197040), (24, 10672410), (28, 9147780), (30, 8537928), (35, 7318224), (36, 7114940), (40, 6403446), (42, 6098520), (45, 5691952), (48, 5336205), (56, 4573890), (60, 4268964), (63, 4065680), (70, 3659112), (72, 3557470), (80, 3201723), (84, 3049260), (90, 2845976), (105, 2439408), (112, 2286945), (120, 2134482), (126, 2032840), (140, 1829556), (144, 1778735), (168, 1524630), (180, 1422988), (210, 1219704), (240, 1067241), (252, 1016420), (280, 914778), (315, 813136), (336, 762315), (360, 711494), (420, 609852), (504, 508210), (560, 457389), (630, 406568), (720, 355747), (840, 304926), (1008, 254105), (1260, 203284), (1680, 152463), (2520, 101642), (5040, 50821)]