131289340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 354170880

約数和(自身を除く): 222881540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 169, 179, 182, 217, 260, 310, 338, 358, 364, 403, 434, 455, 620, 676, 716, 806, 845, 868, 895, 910, 1085, 1183, 1253, 1612, 1690, 1790, 1820, 2015, 2170, 2327, 2366, 2506, 2821, 3380, 3580, 4030, 4340, 4654, 4732, 5012, 5239, 5549, 5642, 5915, 6265, 8060, 9308, 10478, 11098, 11284, 11635, 11830, 12530, 14105, 16289, 20956, 22196, 23270, 23660, 25060, 26195, 27745, 28210, 30251, 32578, 36673, 38843, 46540, 52390, 55490, 56420, 60502, 65156, 72137, 73346, 77686, 81445, 104780, 110980, 121004, 144274, 146692, 151255, 155372, 162890, 183365, 194215, 211757, 288548, 302510, 325780, 360685, 366730, 388430, 423514, 504959, 605020, 721370, 733460, 776860, 847028, 937781, 1009918, 1058785, 1442740, 1875562, 2019836, 2117570, 2524795, 3751124, 4235140, 4688905, 5049590, 6564467, 9377810, 10099180, 13128934, 18755620, 26257868, 32822335, 65644670, 131289340]

約数ペア:

[(1, 131289340), (2, 65644670), (4, 32822335), (5, 26257868), (7, 18755620), (10, 13128934), (13, 10099180), (14, 9377810), (20, 6564467), (26, 5049590), (28, 4688905), (31, 4235140), (35, 3751124), (52, 2524795), (62, 2117570), (65, 2019836), (70, 1875562), (91, 1442740), (124, 1058785), (130, 1009918), (140, 937781), (155, 847028), (169, 776860), (179, 733460), (182, 721370), (217, 605020), (260, 504959), (310, 423514), (338, 388430), (358, 366730), (364, 360685), (403, 325780), (434, 302510), (455, 288548), (620, 211757), (676, 194215), (716, 183365), (806, 162890), (845, 155372), (868, 151255), (895, 146692), (910, 144274), (1085, 121004), (1183, 110980), (1253, 104780), (1612, 81445), (1690, 77686), (1790, 73346), (1820, 72137), (2015, 65156), (2170, 60502), (2327, 56420), (2366, 55490), (2506, 52390), (2821, 46540), (3380, 38843), (3580, 36673), (4030, 32578), (4340, 30251), (4654, 28210), (4732, 27745), (5012, 26195), (5239, 25060), (5549, 23660), (5642, 23270), (5915, 22196), (6265, 20956), (8060, 16289), (9308, 14105), (10478, 12530), (11098, 11830), (11284, 11635)]