278422040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:589

約数の個数: 128

約数和(自身を含む): 718200000

約数和(自身を除く): 439777960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 37, 40, 52, 58, 65, 74, 104, 116, 130, 145, 148, 185, 232, 260, 290, 296, 370, 377, 481, 499, 520, 580, 740, 754, 962, 998, 1073, 1160, 1480, 1508, 1885, 1924, 1996, 2146, 2405, 2495, 3016, 3770, 3848, 3992, 4292, 4810, 4990, 5365, 6487, 7540, 8584, 9620, 9980, 10730, 12974, 13949, 14471, 15080, 18463, 19240, 19960, 21460, 25948, 27898, 28942, 32435, 36926, 42920, 51896, 55796, 57884, 64870, 69745, 72355, 73852, 92315, 111592, 115768, 129740, 139490, 144710, 147704, 184630, 188123, 240019, 259480, 278980, 289420, 369260, 376246, 480038, 535427, 557960, 578840, 738520, 752492, 940615, 960076, 1070854, 1200095, 1504984, 1881230, 1920152, 2141708, 2400190, 2677135, 3762460, 4283416, 4800380, 5354270, 6960551, 7524920, 9600760, 10708540, 13921102, 21417080, 27842204, 34802755, 55684408, 69605510, 139211020, 278422040]

約数ペア:

[(1, 278422040), (2, 139211020), (4, 69605510), (5, 55684408), (8, 34802755), (10, 27842204), (13, 21417080), (20, 13921102), (26, 10708540), (29, 9600760), (37, 7524920), (40, 6960551), (52, 5354270), (58, 4800380), (65, 4283416), (74, 3762460), (104, 2677135), (116, 2400190), (130, 2141708), (145, 1920152), (148, 1881230), (185, 1504984), (232, 1200095), (260, 1070854), (290, 960076), (296, 940615), (370, 752492), (377, 738520), (481, 578840), (499, 557960), (520, 535427), (580, 480038), (740, 376246), (754, 369260), (962, 289420), (998, 278980), (1073, 259480), (1160, 240019), (1480, 188123), (1508, 184630), (1885, 147704), (1924, 144710), (1996, 139490), (2146, 129740), (2405, 115768), (2495, 111592), (3016, 92315), (3770, 73852), (3848, 72355), (3992, 69745), (4292, 64870), (4810, 57884), (4990, 55796), (5365, 51896), (6487, 42920), (7540, 36926), (8584, 32435), (9620, 28942), (9980, 27898), (10730, 25948), (12974, 21460), (13949, 19960), (14471, 19240), (15080, 18463)]