239494840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 609638400

約数和(自身を除く): 370143560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 83, 104, 124, 130, 155, 166, 179, 248, 260, 310, 332, 358, 403, 415, 520, 620, 664, 716, 806, 830, 895, 1079, 1240, 1432, 1612, 1660, 1790, 2015, 2158, 2327, 2573, 3224, 3320, 3580, 4030, 4316, 4654, 5146, 5395, 5549, 7160, 8060, 8632, 9308, 10292, 10790, 11098, 11635, 12865, 14857, 16120, 18616, 20584, 21580, 22196, 23270, 25730, 27745, 29714, 33449, 43160, 44392, 46540, 51460, 55490, 59428, 66898, 72137, 74285, 93080, 102920, 110980, 118856, 133796, 144274, 148570, 167245, 193141, 221960, 267592, 288548, 297140, 334490, 360685, 386282, 460567, 577096, 594280, 668980, 721370, 772564, 921134, 965705, 1337960, 1442740, 1545128, 1842268, 1931410, 2302835, 2885480, 3684536, 3862820, 4605670, 5987371, 7725640, 9211340, 11974742, 18422680, 23949484, 29936855, 47898968, 59873710, 119747420, 239494840]

約数ペア:

[(1, 239494840), (2, 119747420), (4, 59873710), (5, 47898968), (8, 29936855), (10, 23949484), (13, 18422680), (20, 11974742), (26, 9211340), (31, 7725640), (40, 5987371), (52, 4605670), (62, 3862820), (65, 3684536), (83, 2885480), (104, 2302835), (124, 1931410), (130, 1842268), (155, 1545128), (166, 1442740), (179, 1337960), (248, 965705), (260, 921134), (310, 772564), (332, 721370), (358, 668980), (403, 594280), (415, 577096), (520, 460567), (620, 386282), (664, 360685), (716, 334490), (806, 297140), (830, 288548), (895, 267592), (1079, 221960), (1240, 193141), (1432, 167245), (1612, 148570), (1660, 144274), (1790, 133796), (2015, 118856), (2158, 110980), (2327, 102920), (2573, 93080), (3224, 74285), (3320, 72137), (3580, 66898), (4030, 59428), (4316, 55490), (4654, 51460), (5146, 46540), (5395, 44392), (5549, 43160), (7160, 33449), (8060, 29714), (8632, 27745), (9308, 25730), (10292, 23270), (10790, 22196), (11098, 21580), (11635, 20584), (12865, 18616), (14857, 16120)]