71257760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 200377800

約数和(自身を除く): 129120040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 149, 160, 196, 224, 244, 245, 280, 298, 305, 392, 427, 488, 490, 560, 596, 610, 745, 784, 854, 976, 980, 1043, 1120, 1192, 1220, 1490, 1568, 1708, 1952, 1960, 2086, 2135, 2384, 2440, 2980, 2989, 3416, 3920, 4172, 4270, 4768, 4880, 5215, 5960, 5978, 6832, 7301, 7840, 8344, 8540, 9089, 9760, 10430, 11920, 11956, 13664, 14602, 14945, 16688, 17080, 18178, 20860, 23840, 23912, 29204, 29890, 33376, 34160, 36356, 36505, 41720, 45445, 47824, 58408, 59780, 63623, 68320, 72712, 73010, 83440, 90890, 95648, 116816, 119560, 127246, 145424, 146020, 166880, 181780, 233632, 239120, 254492, 290848, 292040, 318115, 363560, 445361, 478240, 508984, 584080, 636230, 727120, 890722, 1017968, 1168160, 1272460, 1454240, 1781444, 2035936, 2226805, 2544920, 3562888, 4453610, 5089840, 7125776, 8907220, 10179680, 14251552, 17814440, 35628880, 71257760]

約数ペア:

[(1, 71257760), (2, 35628880), (4, 17814440), (5, 14251552), (7, 10179680), (8, 8907220), (10, 7125776), (14, 5089840), (16, 4453610), (20, 3562888), (28, 2544920), (32, 2226805), (35, 2035936), (40, 1781444), (49, 1454240), (56, 1272460), (61, 1168160), (70, 1017968), (80, 890722), (98, 727120), (112, 636230), (122, 584080), (140, 508984), (149, 478240), (160, 445361), (196, 363560), (224, 318115), (244, 292040), (245, 290848), (280, 254492), (298, 239120), (305, 233632), (392, 181780), (427, 166880), (488, 146020), (490, 145424), (560, 127246), (596, 119560), (610, 116816), (745, 95648), (784, 90890), (854, 83440), (976, 73010), (980, 72712), (1043, 68320), (1120, 63623), (1192, 59780), (1220, 58408), (1490, 47824), (1568, 45445), (1708, 41720), (1952, 36505), (1960, 36356), (2086, 34160), (2135, 33376), (2384, 29890), (2440, 29204), (2980, 23912), (2989, 23840), (3416, 20860), (3920, 18178), (4172, 17080), (4270, 16688), (4768, 14945), (4880, 14602), (5215, 13664), (5960, 11956), (5978, 11920), (6832, 10430), (7301, 9760), (7840, 9089), (8344, 8540)]