89551420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 237867840

約数和(自身を除く): 148316420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 49, 58, 70, 92, 98, 115, 116, 137, 140, 145, 161, 196, 203, 230, 245, 274, 290, 322, 406, 460, 490, 548, 580, 644, 667, 685, 805, 812, 959, 980, 1015, 1127, 1334, 1370, 1421, 1610, 1918, 2030, 2254, 2668, 2740, 2842, 3151, 3220, 3335, 3836, 3973, 4060, 4508, 4669, 4795, 5635, 5684, 6302, 6670, 6713, 7105, 7946, 9338, 9590, 11270, 12604, 13340, 13426, 14210, 15755, 15892, 18676, 19180, 19865, 22057, 22540, 23345, 26852, 27811, 28420, 31510, 32683, 33565, 39730, 44114, 46690, 55622, 63020, 65366, 67130, 79460, 88228, 91379, 93380, 110285, 111244, 130732, 134260, 139055, 154399, 163415, 182758, 194677, 220570, 278110, 308798, 326830, 365516, 389354, 441140, 456895, 556220, 617596, 639653, 653660, 771995, 778708, 913790, 973385, 1279306, 1543990, 1827580, 1946770, 2558612, 3087980, 3198265, 3893540, 4477571, 6396530, 8955142, 12793060, 17910284, 22387855, 44775710, 89551420]

約数ペア:

[(1, 89551420), (2, 44775710), (4, 22387855), (5, 17910284), (7, 12793060), (10, 8955142), (14, 6396530), (20, 4477571), (23, 3893540), (28, 3198265), (29, 3087980), (35, 2558612), (46, 1946770), (49, 1827580), (58, 1543990), (70, 1279306), (92, 973385), (98, 913790), (115, 778708), (116, 771995), (137, 653660), (140, 639653), (145, 617596), (161, 556220), (196, 456895), (203, 441140), (230, 389354), (245, 365516), (274, 326830), (290, 308798), (322, 278110), (406, 220570), (460, 194677), (490, 182758), (548, 163415), (580, 154399), (644, 139055), (667, 134260), (685, 130732), (805, 111244), (812, 110285), (959, 93380), (980, 91379), (1015, 88228), (1127, 79460), (1334, 67130), (1370, 65366), (1421, 63020), (1610, 55622), (1918, 46690), (2030, 44114), (2254, 39730), (2668, 33565), (2740, 32683), (2842, 31510), (3151, 28420), (3220, 27811), (3335, 26852), (3836, 23345), (3973, 22540), (4060, 22057), (4508, 19865), (4669, 19180), (4795, 18676), (5635, 15892), (5684, 15755), (6302, 14210), (6670, 13426), (6713, 13340), (7105, 12604), (7946, 11270), (9338, 9590)]