256109280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{10889}}^1$

素因数の和:10921

約数の個数: 144

約数和(自身を含む): 938543760

約数和(自身を除く): 682434480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 10889, 11760, 21778, 23520, 32667, 43556, 54445, 65334, 76223, 87112, 108890, 130668, 152446, 163335, 174224, 217780, 228669, 261336, 304892, 326670, 348448, 381115, 435560, 457338, 522672, 533561, 609784, 653340, 762230, 871120, 914676, 1045344, 1067122, 1143345, 1219568, 1306680, 1524460, 1600683, 1742240, 1829352, 2134244, 2286690, 2439136, 2613360, 2667805, 3048920, 3201366, 3658704, 4268488, 4573380, 5226720, 5335610, 6097840, 6402732, 7317408, 8003415, 8536976, 9146760, 10671220, 12195680, 12805464, 16006830, 17073952, 18293520, 21342440, 25610928, 32013660, 36587040, 42684880, 51221856, 64027320, 85369760, 128054640, 256109280]

約数ペア:

[(1, 256109280), (2, 128054640), (3, 85369760), (4, 64027320), (5, 51221856), (6, 42684880), (7, 36587040), (8, 32013660), (10, 25610928), (12, 21342440), (14, 18293520), (15, 17073952), (16, 16006830), (20, 12805464), (21, 12195680), (24, 10671220), (28, 9146760), (30, 8536976), (32, 8003415), (35, 7317408), (40, 6402732), (42, 6097840), (48, 5335610), (49, 5226720), (56, 4573380), (60, 4268488), (70, 3658704), (80, 3201366), (84, 3048920), (96, 2667805), (98, 2613360), (105, 2439136), (112, 2286690), (120, 2134244), (140, 1829352), (147, 1742240), (160, 1600683), (168, 1524460), (196, 1306680), (210, 1219568), (224, 1143345), (240, 1067122), (245, 1045344), (280, 914676), (294, 871120), (336, 762230), (392, 653340), (420, 609784), (480, 533561), (490, 522672), (560, 457338), (588, 435560), (672, 381115), (735, 348448), (784, 326670), (840, 304892), (980, 261336), (1120, 228669), (1176, 217780), (1470, 174224), (1568, 163335), (1680, 152446), (1960, 130668), (2352, 108890), (2940, 87112), (3360, 76223), (3920, 65334), (4704, 54445), (5880, 43556), (7840, 32667), (10889, 23520), (11760, 21778)]