20179656440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{2089}}^1$

素因数の和:2305

約数の個数: 128

約数和(自身を含む): 47861668800

約数和(自身を除く): 27682012360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 107, 122, 148, 185, 214, 244, 296, 305, 370, 428, 488, 535, 610, 740, 856, 1070, 1220, 1480, 2089, 2140, 2257, 2440, 3959, 4178, 4280, 4514, 6527, 7918, 8356, 9028, 10445, 11285, 13054, 15836, 16712, 18056, 19795, 20890, 22570, 26108, 31672, 32635, 39590, 41780, 45140, 52216, 65270, 77293, 79180, 83560, 90280, 127429, 130540, 154586, 158360, 223523, 241499, 254858, 261080, 309172, 386465, 447046, 482998, 509716, 618344, 637145, 772930, 894092, 965996, 1019432, 1117615, 1207495, 1274290, 1545860, 1788184, 1931992, 2235230, 2414990, 2548580, 3091720, 4470460, 4714873, 4829980, 5097160, 8270351, 8940920, 9429746, 9659960, 13634903, 16540702, 18859492, 23574365, 27269806, 33081404, 37718984, 41351755, 47148730, 54539612, 66162808, 68174515, 82703510, 94297460, 109079224, 136349030, 165407020, 188594920, 272698060, 330814040, 504491411, 545396120, 1008982822, 2017965644, 2522457055, 4035931288, 5044914110, 10089828220, 20179656440]

約数ペア:

[(1, 20179656440), (2, 10089828220), (4, 5044914110), (5, 4035931288), (8, 2522457055), (10, 2017965644), (20, 1008982822), (37, 545396120), (40, 504491411), (61, 330814040), (74, 272698060), (107, 188594920), (122, 165407020), (148, 136349030), (185, 109079224), (214, 94297460), (244, 82703510), (296, 68174515), (305, 66162808), (370, 54539612), (428, 47148730), (488, 41351755), (535, 37718984), (610, 33081404), (740, 27269806), (856, 23574365), (1070, 18859492), (1220, 16540702), (1480, 13634903), (2089, 9659960), (2140, 9429746), (2257, 8940920), (2440, 8270351), (3959, 5097160), (4178, 4829980), (4280, 4714873), (4514, 4470460), (6527, 3091720), (7918, 2548580), (8356, 2414990), (9028, 2235230), (10445, 1931992), (11285, 1788184), (13054, 1545860), (15836, 1274290), (16712, 1207495), (18056, 1117615), (19795, 1019432), (20890, 965996), (22570, 894092), (26108, 772930), (31672, 637145), (32635, 618344), (39590, 509716), (41780, 482998), (45140, 447046), (52216, 386465), (65270, 309172), (77293, 261080), (79180, 254858), (83560, 241499), (90280, 223523), (127429, 158360), (130540, 154586)]