219898980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{877}}^1$

素因数の和:1098

約数の個数: 144

約数和(自身を含む): 767020800

約数和(自身を除く): 547121820

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, 315, 398, 420, 597, 630, 796, 877, 995, 1194, 1260, 1393, 1754, 1791, 1990, 2388, 2631, 2786, 2985, 3508, 3582, 3980, 4179, 4385, 5262, 5572, 5970, 6139, 6965, 7164, 7893, 8358, 8770, 8955, 10524, 11940, 12278, 12537, 13155, 13930, 15786, 16716, 17540, 17910, 18417, 20895, 24556, 25074, 26310, 27860, 30695, 31572, 35820, 36834, 39465, 41790, 50148, 52620, 55251, 61390, 62685, 73668, 78930, 83580, 92085, 110502, 122780, 125370, 157860, 174523, 184170, 221004, 250740, 276255, 349046, 368340, 523569, 552510, 698092, 872615, 1047138, 1105020, 1221661, 1570707, 1745230, 2094276, 2443322, 2617845, 3141414, 3490460, 3664983, 4886644, 5235690, 6108305, 6282828, 7329966, 7853535, 10471380, 10994949, 12216610, 14659932, 15707070, 18324915, 21989898, 24433220, 31414140, 36649830, 43979796, 54974745, 73299660, 109949490, 219898980]

約数ペア:

[(1, 219898980), (2, 109949490), (3, 73299660), (4, 54974745), (5, 43979796), (6, 36649830), (7, 31414140), (9, 24433220), (10, 21989898), (12, 18324915), (14, 15707070), (15, 14659932), (18, 12216610), (20, 10994949), (21, 10471380), (28, 7853535), (30, 7329966), (35, 6282828), (36, 6108305), (42, 5235690), (45, 4886644), (60, 3664983), (63, 3490460), (70, 3141414), (84, 2617845), (90, 2443322), (105, 2094276), (126, 1745230), (140, 1570707), (180, 1221661), (199, 1105020), (210, 1047138), (252, 872615), (315, 698092), (398, 552510), (420, 523569), (597, 368340), (630, 349046), (796, 276255), (877, 250740), (995, 221004), (1194, 184170), (1260, 174523), (1393, 157860), (1754, 125370), (1791, 122780), (1990, 110502), (2388, 92085), (2631, 83580), (2786, 78930), (2985, 73668), (3508, 62685), (3582, 61390), (3980, 55251), (4179, 52620), (4385, 50148), (5262, 41790), (5572, 39465), (5970, 36834), (6139, 35820), (6965, 31572), (7164, 30695), (7893, 27860), (8358, 26310), (8770, 25074), (8955, 24556), (10524, 20895), (11940, 18417), (12278, 17910), (12537, 17540), (13155, 16716), (13930, 15786)]