64913238640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{84163}}^1$

素因数の和:84518

約数の個数: 80

約数和(自身を含む): 156294567936

約数和(自身を除く): 91381329296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 311, 496, 620, 622, 1240, 1244, 1555, 2480, 2488, 3110, 4976, 6220, 9641, 12440, 19282, 24880, 38564, 48205, 77128, 84163, 96410, 154256, 168326, 192820, 336652, 385640, 420815, 673304, 771280, 841630, 1346608, 1683260, 2609053, 3366520, 5218106, 6733040, 10436212, 13045265, 20872424, 26090530, 26174693, 41744848, 52181060, 52349386, 104362120, 104698772, 130873465, 208724240, 209397544, 261746930, 418795088, 523493860, 811415483, 1046987720, 1622830966, 2093975440, 3245661932, 4057077415, 6491323864, 8114154830, 12982647728, 16228309660, 32456619320, 64913238640]

約数ペア:

[(1, 64913238640), (2, 32456619320), (4, 16228309660), (5, 12982647728), (8, 8114154830), (10, 6491323864), (16, 4057077415), (20, 3245661932), (31, 2093975440), (40, 1622830966), (62, 1046987720), (80, 811415483), (124, 523493860), (155, 418795088), (248, 261746930), (310, 209397544), (311, 208724240), (496, 130873465), (620, 104698772), (622, 104362120), (1240, 52349386), (1244, 52181060), (1555, 41744848), (2480, 26174693), (2488, 26090530), (3110, 20872424), (4976, 13045265), (6220, 10436212), (9641, 6733040), (12440, 5218106), (19282, 3366520), (24880, 2609053), (38564, 1683260), (48205, 1346608), (77128, 841630), (84163, 771280), (96410, 673304), (154256, 420815), (168326, 385640), (192820, 336652)]