217994920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1715

約数の個数: 128

約数和(自身を含む): 601655040

約数和(自身を除く): 383660120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 130, 143, 184, 220, 230, 253, 260, 286, 299, 440, 460, 506, 520, 572, 598, 715, 920, 1012, 1144, 1196, 1265, 1430, 1495, 1657, 2024, 2392, 2530, 2860, 2990, 3289, 3314, 5060, 5720, 5980, 6578, 6628, 8285, 10120, 11960, 13156, 13256, 16445, 16570, 18227, 21541, 26312, 32890, 33140, 36454, 38111, 43082, 65780, 66280, 72908, 76222, 86164, 91135, 107705, 131560, 145816, 152444, 172328, 182270, 190555, 215410, 236951, 304888, 364540, 381110, 419221, 430820, 473902, 495443, 729080, 762220, 838442, 861640, 947804, 990886, 1184755, 1524440, 1676884, 1895608, 1981772, 2096105, 2369510, 2477215, 3353768, 3963544, 4192210, 4739020, 4954430, 5449873, 8384420, 9478040, 9908860, 10899746, 16768840, 19817720, 21799492, 27249365, 43598984, 54498730, 108997460, 217994920]

約数ペア:

[(1, 217994920), (2, 108997460), (4, 54498730), (5, 43598984), (8, 27249365), (10, 21799492), (11, 19817720), (13, 16768840), (20, 10899746), (22, 9908860), (23, 9478040), (26, 8384420), (40, 5449873), (44, 4954430), (46, 4739020), (52, 4192210), (55, 3963544), (65, 3353768), (88, 2477215), (92, 2369510), (104, 2096105), (110, 1981772), (115, 1895608), (130, 1676884), (143, 1524440), (184, 1184755), (220, 990886), (230, 947804), (253, 861640), (260, 838442), (286, 762220), (299, 729080), (440, 495443), (460, 473902), (506, 430820), (520, 419221), (572, 381110), (598, 364540), (715, 304888), (920, 236951), (1012, 215410), (1144, 190555), (1196, 182270), (1265, 172328), (1430, 152444), (1495, 145816), (1657, 131560), (2024, 107705), (2392, 91135), (2530, 86164), (2860, 76222), (2990, 72908), (3289, 66280), (3314, 65780), (5060, 43082), (5720, 38111), (5980, 36454), (6578, 33140), (6628, 32890), (8285, 26312), (10120, 21541), (11960, 18227), (13156, 16570), (13256, 16445)]