31843980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 111820800

約数和(自身を除く): 79976820

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, 127, 140, 180, 199, 210, 252, 254, 315, 381, 398, 420, 508, 597, 630, 635, 762, 796, 889, 995, 1143, 1194, 1260, 1270, 1393, 1524, 1778, 1791, 1905, 1990, 2286, 2388, 2540, 2667, 2786, 2985, 3556, 3582, 3810, 3980, 4179, 4445, 4572, 5334, 5572, 5715, 5970, 6965, 7164, 7620, 8001, 8358, 8890, 8955, 10668, 11430, 11940, 12537, 13335, 13930, 16002, 16716, 17780, 17910, 20895, 22860, 25074, 25273, 26670, 27860, 32004, 35820, 40005, 41790, 50148, 50546, 53340, 62685, 75819, 80010, 83580, 101092, 125370, 126365, 151638, 160020, 176911, 227457, 250740, 252730, 303276, 353822, 379095, 454914, 505460, 530733, 707644, 758190, 884555, 909828, 1061466, 1137285, 1516380, 1592199, 1769110, 2122932, 2274570, 2653665, 3184398, 3538220, 4549140, 5307330, 6368796, 7960995, 10614660, 15921990, 31843980]

約数ペア:

[(1, 31843980), (2, 15921990), (3, 10614660), (4, 7960995), (5, 6368796), (6, 5307330), (7, 4549140), (9, 3538220), (10, 3184398), (12, 2653665), (14, 2274570), (15, 2122932), (18, 1769110), (20, 1592199), (21, 1516380), (28, 1137285), (30, 1061466), (35, 909828), (36, 884555), (42, 758190), (45, 707644), (60, 530733), (63, 505460), (70, 454914), (84, 379095), (90, 353822), (105, 303276), (126, 252730), (127, 250740), (140, 227457), (180, 176911), (199, 160020), (210, 151638), (252, 126365), (254, 125370), (315, 101092), (381, 83580), (398, 80010), (420, 75819), (508, 62685), (597, 53340), (630, 50546), (635, 50148), (762, 41790), (796, 40005), (889, 35820), (995, 32004), (1143, 27860), (1194, 26670), (1260, 25273), (1270, 25074), (1393, 22860), (1524, 20895), (1778, 17910), (1791, 17780), (1905, 16716), (1990, 16002), (2286, 13930), (2388, 13335), (2540, 12537), (2667, 11940), (2786, 11430), (2985, 10668), (3556, 8955), (3582, 8890), (3810, 8358), (3980, 8001), (4179, 7620), (4445, 7164), (4572, 6965), (5334, 5970), (5572, 5715)]