72580640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 144

約数和(自身を含む): 197878464

約数和(自身を除く): 125297824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 80, 88, 92, 110, 115, 121, 160, 163, 176, 184, 220, 230, 242, 253, 326, 352, 368, 440, 460, 484, 506, 605, 652, 736, 815, 880, 920, 968, 1012, 1210, 1265, 1304, 1630, 1760, 1793, 1840, 1936, 2024, 2420, 2530, 2608, 2783, 3260, 3586, 3680, 3749, 3872, 4048, 4840, 5060, 5216, 5566, 6520, 7172, 7498, 8096, 8965, 9680, 10120, 11132, 13040, 13915, 14344, 14996, 17930, 18745, 19360, 19723, 20240, 22264, 26080, 27830, 28688, 29992, 35860, 37490, 39446, 40480, 41239, 44528, 55660, 57376, 59984, 71720, 74980, 78892, 82478, 89056, 98615, 111320, 119968, 143440, 149960, 157784, 164956, 197230, 206195, 222640, 286880, 299920, 315568, 329912, 394460, 412390, 445280, 453629, 599840, 631136, 659824, 788920, 824780, 907258, 1319648, 1577840, 1649560, 1814516, 2268145, 3155680, 3299120, 3629032, 4536290, 6598240, 7258064, 9072580, 14516128, 18145160, 36290320, 72580640]

約数ペア:

[(1, 72580640), (2, 36290320), (4, 18145160), (5, 14516128), (8, 9072580), (10, 7258064), (11, 6598240), (16, 4536290), (20, 3629032), (22, 3299120), (23, 3155680), (32, 2268145), (40, 1814516), (44, 1649560), (46, 1577840), (55, 1319648), (80, 907258), (88, 824780), (92, 788920), (110, 659824), (115, 631136), (121, 599840), (160, 453629), (163, 445280), (176, 412390), (184, 394460), (220, 329912), (230, 315568), (242, 299920), (253, 286880), (326, 222640), (352, 206195), (368, 197230), (440, 164956), (460, 157784), (484, 149960), (506, 143440), (605, 119968), (652, 111320), (736, 98615), (815, 89056), (880, 82478), (920, 78892), (968, 74980), (1012, 71720), (1210, 59984), (1265, 57376), (1304, 55660), (1630, 44528), (1760, 41239), (1793, 40480), (1840, 39446), (1936, 37490), (2024, 35860), (2420, 29992), (2530, 28688), (2608, 27830), (2783, 26080), (3260, 22264), (3586, 20240), (3680, 19723), (3749, 19360), (3872, 18745), (4048, 17930), (4840, 14996), (5060, 14344), (5216, 13915), (5566, 13040), (6520, 11132), (7172, 10120), (7498, 9680), (8096, 8965)]