257775280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3461}}^1$

素因数の和:3507

約数の個数: 120

約数和(自身を含む): 734082480

約数和(自身を除く): 476307200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 490, 532, 560, 665, 760, 784, 931, 980, 1064, 1330, 1520, 1862, 1960, 2128, 2660, 3461, 3724, 3920, 4655, 5320, 6922, 7448, 9310, 10640, 13844, 14896, 17305, 18620, 24227, 27688, 34610, 37240, 48454, 55376, 65759, 69220, 74480, 96908, 121135, 131518, 138440, 169589, 193816, 242270, 263036, 276880, 328795, 339178, 387632, 460313, 484540, 526072, 657590, 678356, 847945, 920626, 969080, 1052144, 1315180, 1356712, 1695890, 1841252, 1938160, 2301565, 2630360, 2713424, 3222191, 3391780, 3682504, 4603130, 5260720, 6444382, 6783560, 7365008, 9206260, 12888764, 13567120, 16110955, 18412520, 25777528, 32221910, 36825040, 51555056, 64443820, 128887640, 257775280]

約数ペア:

[(1, 257775280), (2, 128887640), (4, 64443820), (5, 51555056), (7, 36825040), (8, 32221910), (10, 25777528), (14, 18412520), (16, 16110955), (19, 13567120), (20, 12888764), (28, 9206260), (35, 7365008), (38, 6783560), (40, 6444382), (49, 5260720), (56, 4603130), (70, 3682504), (76, 3391780), (80, 3222191), (95, 2713424), (98, 2630360), (112, 2301565), (133, 1938160), (140, 1841252), (152, 1695890), (190, 1356712), (196, 1315180), (245, 1052144), (266, 969080), (280, 920626), (304, 847945), (380, 678356), (392, 657590), (490, 526072), (532, 484540), (560, 460313), (665, 387632), (760, 339178), (784, 328795), (931, 276880), (980, 263036), (1064, 242270), (1330, 193816), (1520, 169589), (1862, 138440), (1960, 131518), (2128, 121135), (2660, 96908), (3461, 74480), (3724, 69220), (3920, 65759), (4655, 55376), (5320, 48454), (6922, 37240), (7448, 34610), (9310, 27688), (10640, 24227), (13844, 18620), (14896, 17305)]