257475120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{153259}}^1$

素因数の和:153282

約数の個数: 80

約数和(自身を含む): 912203520

約数和(自身を除く): 654728400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 153259, 306518, 459777, 613036, 766295, 919554, 1072813, 1226072, 1532590, 1839108, 2145626, 2298885, 2452144, 3065180, 3218439, 3678216, 4291252, 4597770, 5364065, 6130360, 6436878, 7356432, 8582504, 9195540, 10728130, 12260720, 12873756, 16092195, 17165008, 18391080, 21456260, 25747512, 32184390, 36782160, 42912520, 51495024, 64368780, 85825040, 128737560, 257475120]

約数ペア:

[(1, 257475120), (2, 128737560), (3, 85825040), (4, 64368780), (5, 51495024), (6, 42912520), (7, 36782160), (8, 32184390), (10, 25747512), (12, 21456260), (14, 18391080), (15, 17165008), (16, 16092195), (20, 12873756), (21, 12260720), (24, 10728130), (28, 9195540), (30, 8582504), (35, 7356432), (40, 6436878), (42, 6130360), (48, 5364065), (56, 4597770), (60, 4291252), (70, 3678216), (80, 3218439), (84, 3065180), (105, 2452144), (112, 2298885), (120, 2145626), (140, 1839108), (168, 1532590), (210, 1226072), (240, 1072813), (280, 919554), (336, 766295), (420, 613036), (560, 459777), (840, 306518), (1680, 153259)]