513076720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{797}}^1$

素因数の和:1442

約数の個数: 80

約数和(自身を含む): 1288355040

約数和(自身を除く): 775278320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 619, 797, 1040, 1238, 1594, 2476, 3095, 3188, 3985, 4952, 6190, 6376, 7970, 8047, 9904, 10361, 12380, 12752, 15940, 16094, 20722, 24760, 31880, 32188, 40235, 41444, 49520, 51805, 63760, 64376, 80470, 82888, 103610, 128752, 160940, 165776, 207220, 321880, 414440, 493343, 643760, 828880, 986686, 1973372, 2466715, 3946744, 4933430, 6413459, 7893488, 9866860, 12826918, 19733720, 25653836, 32067295, 39467440, 51307672, 64134590, 102615344, 128269180, 256538360, 513076720]

約数ペア:

[(1, 513076720), (2, 256538360), (4, 128269180), (5, 102615344), (8, 64134590), (10, 51307672), (13, 39467440), (16, 32067295), (20, 25653836), (26, 19733720), (40, 12826918), (52, 9866860), (65, 7893488), (80, 6413459), (104, 4933430), (130, 3946744), (208, 2466715), (260, 1973372), (520, 986686), (619, 828880), (797, 643760), (1040, 493343), (1238, 414440), (1594, 321880), (2476, 207220), (3095, 165776), (3188, 160940), (3985, 128752), (4952, 103610), (6190, 82888), (6376, 80470), (7970, 64376), (8047, 63760), (9904, 51805), (10361, 49520), (12380, 41444), (12752, 40235), (15940, 32188), (16094, 31880), (20722, 24760)]