64440180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 225388800

約数和(自身を除く): 160948620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 199, 210, 252, 257, 315, 398, 420, 514, 597, 630, 771, 796, 995, 1028, 1194, 1260, 1285, 1393, 1542, 1791, 1799, 1990, 2313, 2388, 2570, 2786, 2985, 3084, 3582, 3598, 3855, 3980, 4179, 4626, 5140, 5397, 5572, 5970, 6965, 7164, 7196, 7710, 8358, 8955, 8995, 9252, 10794, 11565, 11940, 12537, 13930, 15420, 16191, 16716, 17910, 17990, 20895, 21588, 23130, 25074, 26985, 27860, 32382, 35820, 35980, 41790, 46260, 50148, 51143, 53970, 62685, 64764, 80955, 83580, 102286, 107940, 125370, 153429, 161910, 204572, 250740, 255715, 306858, 323820, 358001, 460287, 511430, 613716, 716002, 767145, 920574, 1022860, 1074003, 1432004, 1534290, 1790005, 1841148, 2148006, 2301435, 3068580, 3222009, 3580010, 4296012, 4602870, 5370015, 6444018, 7160020, 9205740, 10740030, 12888036, 16110045, 21480060, 32220090, 64440180]

約数ペア:

[(1, 64440180), (2, 32220090), (3, 21480060), (4, 16110045), (5, 12888036), (6, 10740030), (7, 9205740), (9, 7160020), (10, 6444018), (12, 5370015), (14, 4602870), (15, 4296012), (18, 3580010), (20, 3222009), (21, 3068580), (28, 2301435), (30, 2148006), (35, 1841148), (36, 1790005), (42, 1534290), (45, 1432004), (60, 1074003), (63, 1022860), (70, 920574), (84, 767145), (90, 716002), (105, 613716), (126, 511430), (140, 460287), (180, 358001), (199, 323820), (210, 306858), (252, 255715), (257, 250740), (315, 204572), (398, 161910), (420, 153429), (514, 125370), (597, 107940), (630, 102286), (771, 83580), (796, 80955), (995, 64764), (1028, 62685), (1194, 53970), (1260, 51143), (1285, 50148), (1393, 46260), (1542, 41790), (1791, 35980), (1799, 35820), (1990, 32382), (2313, 27860), (2388, 26985), (2570, 25074), (2786, 23130), (2985, 21588), (3084, 20895), (3582, 17990), (3598, 17910), (3855, 16716), (3980, 16191), (4179, 15420), (4626, 13930), (5140, 12537), (5397, 11940), (5572, 11565), (5970, 10794), (6965, 9252), (7164, 8995), (7196, 8955), (7710, 8358)]