87641960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:511

約数の個数: 128

約数和(自身を含む): 243302400

約数和(自身を除く): 155660440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 434, 439, 460, 620, 644, 713, 805, 868, 878, 920, 1085, 1240, 1288, 1426, 1610, 1736, 1756, 2170, 2195, 2852, 3073, 3220, 3512, 3565, 4340, 4390, 4991, 5704, 6146, 6440, 7130, 8680, 8780, 9982, 10097, 12292, 13609, 14260, 15365, 17560, 19964, 20194, 24584, 24955, 27218, 28520, 30730, 39928, 40388, 49910, 50485, 54436, 61460, 68045, 70679, 80776, 95263, 99820, 100970, 108872, 122920, 136090, 141358, 190526, 199640, 201940, 272180, 282716, 313007, 353395, 381052, 403880, 476315, 544360, 565432, 626014, 706790, 762104, 952630, 1252028, 1413580, 1565035, 1905260, 2191049, 2504056, 2827160, 3130070, 3810520, 4382098, 6260140, 8764196, 10955245, 12520280, 17528392, 21910490, 43820980, 87641960]

約数ペア:

[(1, 87641960), (2, 43820980), (4, 21910490), (5, 17528392), (7, 12520280), (8, 10955245), (10, 8764196), (14, 6260140), (20, 4382098), (23, 3810520), (28, 3130070), (31, 2827160), (35, 2504056), (40, 2191049), (46, 1905260), (56, 1565035), (62, 1413580), (70, 1252028), (92, 952630), (115, 762104), (124, 706790), (140, 626014), (155, 565432), (161, 544360), (184, 476315), (217, 403880), (230, 381052), (248, 353395), (280, 313007), (310, 282716), (322, 272180), (434, 201940), (439, 199640), (460, 190526), (620, 141358), (644, 136090), (713, 122920), (805, 108872), (868, 100970), (878, 99820), (920, 95263), (1085, 80776), (1240, 70679), (1288, 68045), (1426, 61460), (1610, 54436), (1736, 50485), (1756, 49910), (2170, 40388), (2195, 39928), (2852, 30730), (3073, 28520), (3220, 27218), (3512, 24955), (3565, 24584), (4340, 20194), (4390, 19964), (4991, 17560), (5704, 15365), (6146, 14260), (6440, 13609), (7130, 12292), (8680, 10097), (8780, 9982)]