256700640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4021}}^1$

素因数の和:4065

約数の個数: 192

約数和(自身を含む): 973002240

約数和(自身を除く): 716301600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2660, 3040, 3192, 3360, 3990, 4021, 4256, 4560, 5320, 6384, 7980, 8042, 9120, 10640, 12063, 12768, 15960, 16084, 20105, 21280, 24126, 28147, 31920, 32168, 40210, 48252, 56294, 60315, 63840, 64336, 76399, 80420, 84441, 96504, 112588, 120630, 128672, 140735, 152798, 160840, 168882, 193008, 225176, 229197, 241260, 281470, 305596, 321680, 337764, 381995, 386016, 422205, 450352, 458394, 482520, 534793, 562940, 611192, 643360, 675528, 763990, 844410, 900704, 916788, 965040, 1069586, 1125880, 1145985, 1222384, 1351056, 1527980, 1604379, 1688820, 1833576, 1930080, 2139172, 2251760, 2291970, 2444768, 2673965, 2702112, 3055960, 3208758, 3377640, 3667152, 4278344, 4503520, 4583940, 5347930, 6111920, 6417516, 6755280, 7334304, 8021895, 8556688, 9167880, 10695860, 12223840, 12835032, 13510560, 16043790, 17113376, 18335760, 21391720, 25670064, 32087580, 36671520, 42783440, 51340128, 64175160, 85566880, 128350320, 256700640]

約数ペア:

[(1, 256700640), (2, 128350320), (3, 85566880), (4, 64175160), (5, 51340128), (6, 42783440), (7, 36671520), (8, 32087580), (10, 25670064), (12, 21391720), (14, 18335760), (15, 17113376), (16, 16043790), (19, 13510560), (20, 12835032), (21, 12223840), (24, 10695860), (28, 9167880), (30, 8556688), (32, 8021895), (35, 7334304), (38, 6755280), (40, 6417516), (42, 6111920), (48, 5347930), (56, 4583940), (57, 4503520), (60, 4278344), (70, 3667152), (76, 3377640), (80, 3208758), (84, 3055960), (95, 2702112), (96, 2673965), (105, 2444768), (112, 2291970), (114, 2251760), (120, 2139172), (133, 1930080), (140, 1833576), (152, 1688820), (160, 1604379), (168, 1527980), (190, 1351056), (210, 1222384), (224, 1145985), (228, 1125880), (240, 1069586), (266, 965040), (280, 916788), (285, 900704), (304, 844410), (336, 763990), (380, 675528), (399, 643360), (420, 611192), (456, 562940), (480, 534793), (532, 482520), (560, 458394), (570, 450352), (608, 422205), (665, 386016), (672, 381995), (760, 337764), (798, 321680), (840, 305596), (912, 281470), (1064, 241260), (1120, 229197), (1140, 225176), (1330, 193008), (1520, 168882), (1596, 160840), (1680, 152798), (1824, 140735), (1995, 128672), (2128, 120630), (2280, 112588), (2660, 96504), (3040, 84441), (3192, 80420), (3360, 76399), (3990, 64336), (4021, 63840), (4256, 60315), (4560, 56294), (5320, 48252), (6384, 40210), (7980, 32168), (8042, 31920), (9120, 28147), (10640, 24126), (12063, 21280), (12768, 20105), (15960, 16084)]