20925840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:401

約数の個数: 160

約数和(自身を含む): 73745280

約数和(自身を除く): 52819440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 38, 39, 40, 48, 52, 57, 60, 65, 76, 78, 80, 95, 104, 114, 120, 130, 152, 156, 190, 195, 208, 228, 240, 247, 260, 285, 304, 312, 353, 380, 390, 456, 494, 520, 570, 624, 706, 741, 760, 780, 912, 988, 1040, 1059, 1140, 1235, 1412, 1482, 1520, 1560, 1765, 1976, 2118, 2280, 2470, 2824, 2964, 3120, 3530, 3705, 3952, 4236, 4560, 4589, 4940, 5295, 5648, 5928, 6707, 7060, 7410, 8472, 9178, 9880, 10590, 11856, 13414, 13767, 14120, 14820, 16944, 18356, 19760, 20121, 21180, 22945, 26828, 27534, 28240, 29640, 33535, 36712, 40242, 42360, 45890, 53656, 55068, 59280, 67070, 68835, 73424, 80484, 84720, 87191, 91780, 100605, 107312, 110136, 134140, 137670, 160968, 174382, 183560, 201210, 220272, 261573, 268280, 275340, 321936, 348764, 367120, 402420, 435955, 523146, 536560, 550680, 697528, 804840, 871910, 1046292, 1101360, 1307865, 1395056, 1609680, 1743820, 2092584, 2615730, 3487640, 4185168, 5231460, 6975280, 10462920, 20925840]

約数ペア:

[(1, 20925840), (2, 10462920), (3, 6975280), (4, 5231460), (5, 4185168), (6, 3487640), (8, 2615730), (10, 2092584), (12, 1743820), (13, 1609680), (15, 1395056), (16, 1307865), (19, 1101360), (20, 1046292), (24, 871910), (26, 804840), (30, 697528), (38, 550680), (39, 536560), (40, 523146), (48, 435955), (52, 402420), (57, 367120), (60, 348764), (65, 321936), (76, 275340), (78, 268280), (80, 261573), (95, 220272), (104, 201210), (114, 183560), (120, 174382), (130, 160968), (152, 137670), (156, 134140), (190, 110136), (195, 107312), (208, 100605), (228, 91780), (240, 87191), (247, 84720), (260, 80484), (285, 73424), (304, 68835), (312, 67070), (353, 59280), (380, 55068), (390, 53656), (456, 45890), (494, 42360), (520, 40242), (570, 36712), (624, 33535), (706, 29640), (741, 28240), (760, 27534), (780, 26828), (912, 22945), (988, 21180), (1040, 20121), (1059, 19760), (1140, 18356), (1235, 16944), (1412, 14820), (1482, 14120), (1520, 13767), (1560, 13414), (1765, 11856), (1976, 10590), (2118, 9880), (2280, 9178), (2470, 8472), (2824, 7410), (2964, 7060), (3120, 6707), (3530, 5928), (3705, 5648), (3952, 5295), (4236, 4940), (4560, 4589)]