47808180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2038

約数の個数: 144

約数和(自身を含む): 174545280

約数和(自身を除く): 126737100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 1997, 2394, 2660, 3420, 3990, 3994, 4788, 5985, 5991, 7980, 7988, 9985, 11970, 11982, 13979, 17973, 19970, 23940, 23964, 27958, 29955, 35946, 37943, 39940, 41937, 55916, 59910, 69895, 71892, 75886, 83874, 89865, 113829, 119820, 125811, 139790, 151772, 167748, 179730, 189715, 209685, 227658, 251622, 265601, 279580, 341487, 359460, 379430, 419370, 455316, 503244, 531202, 569145, 629055, 682974, 758860, 796803, 838740, 1062404, 1138290, 1258110, 1328005, 1365948, 1593606, 1707435, 2276580, 2390409, 2516220, 2656010, 3187212, 3414870, 3984015, 4780818, 5312020, 6829740, 7968030, 9561636, 11952045, 15936060, 23904090, 47808180]

約数ペア:

[(1, 47808180), (2, 23904090), (3, 15936060), (4, 11952045), (5, 9561636), (6, 7968030), (7, 6829740), (9, 5312020), (10, 4780818), (12, 3984015), (14, 3414870), (15, 3187212), (18, 2656010), (19, 2516220), (20, 2390409), (21, 2276580), (28, 1707435), (30, 1593606), (35, 1365948), (36, 1328005), (38, 1258110), (42, 1138290), (45, 1062404), (57, 838740), (60, 796803), (63, 758860), (70, 682974), (76, 629055), (84, 569145), (90, 531202), (95, 503244), (105, 455316), (114, 419370), (126, 379430), (133, 359460), (140, 341487), (171, 279580), (180, 265601), (190, 251622), (210, 227658), (228, 209685), (252, 189715), (266, 179730), (285, 167748), (315, 151772), (342, 139790), (380, 125811), (399, 119820), (420, 113829), (532, 89865), (570, 83874), (630, 75886), (665, 71892), (684, 69895), (798, 59910), (855, 55916), (1140, 41937), (1197, 39940), (1260, 37943), (1330, 35946), (1596, 29955), (1710, 27958), (1995, 23964), (1997, 23940), (2394, 19970), (2660, 17973), (3420, 13979), (3990, 11982), (3994, 11970), (4788, 9985), (5985, 7988), (5991, 7980)]