211916520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{821}}^1$

素因数の和:1080

約数の個数: 128

約数和(自身を含む): 710208000

約数和(自身を除く): 498291480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 239, 270, 360, 478, 540, 717, 821, 956, 1080, 1195, 1434, 1642, 1912, 2151, 2390, 2463, 2868, 3284, 3585, 4105, 4302, 4780, 4926, 5736, 6453, 6568, 7170, 7389, 8210, 8604, 9560, 9852, 10755, 12315, 12906, 14340, 14778, 16420, 17208, 19704, 21510, 22167, 24630, 25812, 28680, 29556, 32265, 32840, 36945, 43020, 44334, 49260, 51624, 59112, 64530, 73890, 86040, 88668, 98520, 110835, 129060, 147780, 177336, 196219, 221670, 258120, 295560, 392438, 443340, 588657, 784876, 886680, 981095, 1177314, 1569752, 1765971, 1962190, 2354628, 2943285, 3531942, 3924380, 4709256, 5297913, 5886570, 7063884, 7848760, 8829855, 10595826, 11773140, 14127768, 17659710, 21191652, 23546280, 26489565, 35319420, 42383304, 52979130, 70638840, 105958260, 211916520]

約数ペア:

[(1, 211916520), (2, 105958260), (3, 70638840), (4, 52979130), (5, 42383304), (6, 35319420), (8, 26489565), (9, 23546280), (10, 21191652), (12, 17659710), (15, 14127768), (18, 11773140), (20, 10595826), (24, 8829855), (27, 7848760), (30, 7063884), (36, 5886570), (40, 5297913), (45, 4709256), (54, 3924380), (60, 3531942), (72, 2943285), (90, 2354628), (108, 1962190), (120, 1765971), (135, 1569752), (180, 1177314), (216, 981095), (239, 886680), (270, 784876), (360, 588657), (478, 443340), (540, 392438), (717, 295560), (821, 258120), (956, 221670), (1080, 196219), (1195, 177336), (1434, 147780), (1642, 129060), (1912, 110835), (2151, 98520), (2390, 88668), (2463, 86040), (2868, 73890), (3284, 64530), (3585, 59112), (4105, 51624), (4302, 49260), (4780, 44334), (4926, 43020), (5736, 36945), (6453, 32840), (6568, 32265), (7170, 29556), (7389, 28680), (8210, 25812), (8604, 24630), (9560, 22167), (9852, 21510), (10755, 19704), (12315, 17208), (12906, 16420), (14340, 14778)]