257101320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{877}}^1$

素因数の和:1247

約数の個数: 128

約数和(自身を含む): 885024000

約数和(自身を除く): 627922680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 349, 420, 698, 840, 877, 1047, 1396, 1745, 1754, 2094, 2443, 2631, 2792, 3490, 3508, 4188, 4385, 4886, 5235, 5262, 6139, 6980, 7016, 7329, 8376, 8770, 9772, 10470, 10524, 12215, 12278, 13155, 13960, 14658, 17540, 18417, 19544, 20940, 21048, 24430, 24556, 26310, 29316, 30695, 35080, 36645, 36834, 41880, 48860, 49112, 52620, 58632, 61390, 73290, 73668, 92085, 97720, 105240, 122780, 146580, 147336, 184170, 245560, 293160, 306073, 368340, 612146, 736680, 918219, 1224292, 1530365, 1836438, 2142511, 2448584, 3060730, 3672876, 4285022, 4591095, 6121460, 6427533, 7345752, 8570044, 9182190, 10712555, 12242920, 12855066, 17140088, 18364380, 21425110, 25710132, 32137665, 36728760, 42850220, 51420264, 64275330, 85700440, 128550660, 257101320]

約数ペア:

[(1, 257101320), (2, 128550660), (3, 85700440), (4, 64275330), (5, 51420264), (6, 42850220), (7, 36728760), (8, 32137665), (10, 25710132), (12, 21425110), (14, 18364380), (15, 17140088), (20, 12855066), (21, 12242920), (24, 10712555), (28, 9182190), (30, 8570044), (35, 7345752), (40, 6427533), (42, 6121460), (56, 4591095), (60, 4285022), (70, 3672876), (84, 3060730), (105, 2448584), (120, 2142511), (140, 1836438), (168, 1530365), (210, 1224292), (280, 918219), (349, 736680), (420, 612146), (698, 368340), (840, 306073), (877, 293160), (1047, 245560), (1396, 184170), (1745, 147336), (1754, 146580), (2094, 122780), (2443, 105240), (2631, 97720), (2792, 92085), (3490, 73668), (3508, 73290), (4188, 61390), (4385, 58632), (4886, 52620), (5235, 49112), (5262, 48860), (6139, 41880), (6980, 36834), (7016, 36645), (7329, 35080), (8376, 30695), (8770, 29316), (9772, 26310), (10470, 24556), (10524, 24430), (12215, 21048), (12278, 20940), (13155, 19544), (13960, 18417), (14658, 17540)]