81213900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1283}}^1$

素因数の和:1511

約数の個数: 72

約数和(自身を含む): 236276544

約数和(自身を除く): 155062644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 211, 300, 422, 633, 844, 1055, 1266, 1283, 2110, 2532, 2566, 3165, 3849, 4220, 5132, 5275, 6330, 6415, 7698, 10550, 12660, 12830, 15396, 15825, 19245, 21100, 25660, 31650, 32075, 38490, 63300, 64150, 76980, 96225, 128300, 192450, 270713, 384900, 541426, 812139, 1082852, 1353565, 1624278, 2707130, 3248556, 4060695, 5414260, 6767825, 8121390, 13535650, 16242780, 20303475, 27071300, 40606950, 81213900]

約数ペア:

[(1, 81213900), (2, 40606950), (3, 27071300), (4, 20303475), (5, 16242780), (6, 13535650), (10, 8121390), (12, 6767825), (15, 5414260), (20, 4060695), (25, 3248556), (30, 2707130), (50, 1624278), (60, 1353565), (75, 1082852), (100, 812139), (150, 541426), (211, 384900), (300, 270713), (422, 192450), (633, 128300), (844, 96225), (1055, 76980), (1266, 64150), (1283, 63300), (2110, 38490), (2532, 32075), (2566, 31650), (3165, 25660), (3849, 21100), (4220, 19245), (5132, 15825), (5275, 15396), (6330, 12830), (6415, 12660), (7698, 10550)]