257215440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2741}}^1$

素因数の和:2797

約数の個数: 160

約数和(自身を含む): 881300736

約数和(自身を除く): 624085296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 240, 255, 272, 276, 340, 345, 368, 391, 408, 460, 510, 552, 680, 690, 782, 816, 920, 1020, 1104, 1173, 1360, 1380, 1564, 1840, 1955, 2040, 2346, 2741, 2760, 3128, 3910, 4080, 4692, 5482, 5520, 5865, 6256, 7820, 8223, 9384, 10964, 11730, 13705, 15640, 16446, 18768, 21928, 23460, 27410, 31280, 32892, 41115, 43856, 46597, 46920, 54820, 63043, 65784, 82230, 93194, 93840, 109640, 126086, 131568, 139791, 164460, 186388, 189129, 219280, 232985, 252172, 279582, 315215, 328920, 372776, 378258, 465970, 504344, 559164, 630430, 657840, 698955, 745552, 756516, 931940, 945645, 1008688, 1071731, 1118328, 1260860, 1397910, 1513032, 1863880, 1891290, 2143462, 2236656, 2521720, 2795820, 3026064, 3215193, 3727760, 3782580, 4286924, 5043440, 5358655, 5591640, 6430386, 7565160, 8573848, 10717310, 11183280, 12860772, 15130320, 16075965, 17147696, 21434620, 25721544, 32151930, 42869240, 51443088, 64303860, 85738480, 128607720, 257215440]

約数ペア:

[(1, 257215440), (2, 128607720), (3, 85738480), (4, 64303860), (5, 51443088), (6, 42869240), (8, 32151930), (10, 25721544), (12, 21434620), (15, 17147696), (16, 16075965), (17, 15130320), (20, 12860772), (23, 11183280), (24, 10717310), (30, 8573848), (34, 7565160), (40, 6430386), (46, 5591640), (48, 5358655), (51, 5043440), (60, 4286924), (68, 3782580), (69, 3727760), (80, 3215193), (85, 3026064), (92, 2795820), (102, 2521720), (115, 2236656), (120, 2143462), (136, 1891290), (138, 1863880), (170, 1513032), (184, 1397910), (204, 1260860), (230, 1118328), (240, 1071731), (255, 1008688), (272, 945645), (276, 931940), (340, 756516), (345, 745552), (368, 698955), (391, 657840), (408, 630430), (460, 559164), (510, 504344), (552, 465970), (680, 378258), (690, 372776), (782, 328920), (816, 315215), (920, 279582), (1020, 252172), (1104, 232985), (1173, 219280), (1360, 189129), (1380, 186388), (1564, 164460), (1840, 139791), (1955, 131568), (2040, 126086), (2346, 109640), (2741, 93840), (2760, 93194), (3128, 82230), (3910, 65784), (4080, 63043), (4692, 54820), (5482, 46920), (5520, 46597), (5865, 43856), (6256, 41115), (7820, 32892), (8223, 31280), (9384, 27410), (10964, 23460), (11730, 21928), (13705, 18768), (15640, 16446)]