40655720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 111974400

約数和(自身を除く): 71318680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 59, 70, 92, 107, 115, 118, 140, 161, 184, 214, 230, 236, 280, 295, 322, 413, 428, 460, 472, 535, 590, 644, 749, 805, 826, 856, 920, 1070, 1180, 1288, 1357, 1498, 1610, 1652, 2065, 2140, 2360, 2461, 2714, 2996, 3220, 3304, 3745, 4130, 4280, 4922, 5428, 5992, 6313, 6440, 6785, 7490, 8260, 9499, 9844, 10856, 12305, 12626, 13570, 14980, 16520, 17227, 18998, 19688, 24610, 25252, 27140, 29960, 31565, 34454, 37996, 44191, 47495, 49220, 50504, 54280, 63130, 68908, 75992, 86135, 88382, 94990, 98440, 126260, 137816, 145199, 172270, 176764, 189980, 220955, 252520, 290398, 344540, 353528, 379960, 441910, 580796, 689080, 725995, 883820, 1016393, 1161592, 1451990, 1767640, 2032786, 2903980, 4065572, 5081965, 5807960, 8131144, 10163930, 20327860, 40655720]

約数ペア:

[(1, 40655720), (2, 20327860), (4, 10163930), (5, 8131144), (7, 5807960), (8, 5081965), (10, 4065572), (14, 2903980), (20, 2032786), (23, 1767640), (28, 1451990), (35, 1161592), (40, 1016393), (46, 883820), (56, 725995), (59, 689080), (70, 580796), (92, 441910), (107, 379960), (115, 353528), (118, 344540), (140, 290398), (161, 252520), (184, 220955), (214, 189980), (230, 176764), (236, 172270), (280, 145199), (295, 137816), (322, 126260), (413, 98440), (428, 94990), (460, 88382), (472, 86135), (535, 75992), (590, 68908), (644, 63130), (749, 54280), (805, 50504), (826, 49220), (856, 47495), (920, 44191), (1070, 37996), (1180, 34454), (1288, 31565), (1357, 29960), (1498, 27140), (1610, 25252), (1652, 24610), (2065, 19688), (2140, 18998), (2360, 17227), (2461, 16520), (2714, 14980), (2996, 13570), (3220, 12626), (3304, 12305), (3745, 10856), (4130, 9844), (4280, 9499), (4922, 8260), (5428, 7490), (5992, 6785), (6313, 6440)]