81649205840

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1163}}^1\times {\mathrm{4547}}^1$

素因数の和:5916

約数の個数: 80

約数和(自身を含む): 191024077248

約数和(自身を除く): 109374871408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1163, 1544, 1930, 2326, 3088, 3860, 4547, 4652, 5815, 7720, 9094, 9304, 11630, 15440, 18188, 18608, 22735, 23260, 36376, 45470, 46520, 72752, 90940, 93040, 181880, 224459, 363760, 448918, 877571, 897836, 1122295, 1755142, 1795672, 2244590, 3510284, 3591344, 4387855, 4489180, 5288161, 7020568, 8775710, 8978360, 10576322, 14041136, 17551420, 17956720, 21152644, 26440805, 35102840, 42305288, 52881610, 70205680, 84610576, 105763220, 211526440, 423052880, 1020615073, 2041230146, 4082460292, 5103075365, 8164920584, 10206150730, 16329841168, 20412301460, 40824602920, 81649205840]

約数ペア:

[(1, 81649205840), (2, 40824602920), (4, 20412301460), (5, 16329841168), (8, 10206150730), (10, 8164920584), (16, 5103075365), (20, 4082460292), (40, 2041230146), (80, 1020615073), (193, 423052880), (386, 211526440), (772, 105763220), (965, 84610576), (1163, 70205680), (1544, 52881610), (1930, 42305288), (2326, 35102840), (3088, 26440805), (3860, 21152644), (4547, 17956720), (4652, 17551420), (5815, 14041136), (7720, 10576322), (9094, 8978360), (9304, 8775710), (11630, 7020568), (15440, 5288161), (18188, 4489180), (18608, 4387855), (22735, 3591344), (23260, 3510284), (36376, 2244590), (45470, 1795672), (46520, 1755142), (72752, 1122295), (90940, 897836), (93040, 877571), (181880, 448918), (224459, 363760)]