255489780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 192

約数和(自身を含む): 893910528

約数和(自身を除く): 638420748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 73, 78, 84, 91, 105, 130, 140, 146, 156, 182, 195, 210, 219, 260, 273, 292, 364, 365, 390, 420, 438, 455, 511, 546, 641, 730, 780, 876, 910, 949, 1022, 1092, 1095, 1282, 1365, 1460, 1533, 1820, 1898, 1923, 2044, 2190, 2555, 2564, 2730, 2847, 3066, 3205, 3796, 3846, 4380, 4487, 4745, 5110, 5460, 5694, 6132, 6410, 6643, 7665, 7692, 8333, 8974, 9490, 9615, 10220, 11388, 12820, 13286, 13461, 14235, 15330, 16666, 17948, 18980, 19230, 19929, 22435, 24999, 26572, 26922, 28470, 30660, 33215, 33332, 38460, 39858, 41665, 44870, 46793, 49998, 53844, 56940, 58331, 66430, 67305, 79716, 83330, 89740, 93586, 99645, 99996, 116662, 124995, 132860, 134610, 140379, 166660, 174993, 187172, 199290, 233324, 233965, 249990, 269220, 280758, 291655, 327551, 349986, 398580, 467930, 499980, 561516, 583310, 608309, 655102, 699972, 701895, 874965, 935860, 982653, 1166620, 1216618, 1310204, 1403790, 1637755, 1749930, 1824927, 1965306, 2433236, 2807580, 3041545, 3275510, 3499860, 3649854, 3930612, 4258163, 4913265, 6083090, 6551020, 7299708, 8516326, 9124635, 9826530, 12166180, 12774489, 17032652, 18249270, 19653060, 21290815, 25548978, 36498540, 42581630, 51097956, 63872445, 85163260, 127744890, 255489780]

約数ペア:

[(1, 255489780), (2, 127744890), (3, 85163260), (4, 63872445), (5, 51097956), (6, 42581630), (7, 36498540), (10, 25548978), (12, 21290815), (13, 19653060), (14, 18249270), (15, 17032652), (20, 12774489), (21, 12166180), (26, 9826530), (28, 9124635), (30, 8516326), (35, 7299708), (39, 6551020), (42, 6083090), (52, 4913265), (60, 4258163), (65, 3930612), (70, 3649854), (73, 3499860), (78, 3275510), (84, 3041545), (91, 2807580), (105, 2433236), (130, 1965306), (140, 1824927), (146, 1749930), (156, 1637755), (182, 1403790), (195, 1310204), (210, 1216618), (219, 1166620), (260, 982653), (273, 935860), (292, 874965), (364, 701895), (365, 699972), (390, 655102), (420, 608309), (438, 583310), (455, 561516), (511, 499980), (546, 467930), (641, 398580), (730, 349986), (780, 327551), (876, 291655), (910, 280758), (949, 269220), (1022, 249990), (1092, 233965), (1095, 233324), (1282, 199290), (1365, 187172), (1460, 174993), (1533, 166660), (1820, 140379), (1898, 134610), (1923, 132860), (2044, 124995), (2190, 116662), (2555, 99996), (2564, 99645), (2730, 93586), (2847, 89740), (3066, 83330), (3205, 79716), (3796, 67305), (3846, 66430), (4380, 58331), (4487, 56940), (4745, 53844), (5110, 49998), (5460, 46793), (5694, 44870), (6132, 41665), (6410, 39858), (6643, 38460), (7665, 33332), (7692, 33215), (8333, 30660), (8974, 28470), (9490, 26922), (9615, 26572), (10220, 24999), (11388, 22435), (12820, 19929), (13286, 19230), (13461, 18980), (14235, 17948), (15330, 16666)]