87746940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25657}}^1$

素因数の和:25691

約数の個数: 72

約数和(自身を含む): 280185360

約数和(自身を除く): 192438420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 25657, 51314, 76971, 102628, 128285, 153942, 230913, 256570, 307884, 384855, 461826, 487483, 513140, 769710, 923652, 974966, 1154565, 1462449, 1539420, 1949932, 2309130, 2437415, 2924898, 4387347, 4618260, 4874830, 5849796, 7312245, 8774694, 9749660, 14624490, 17549388, 21936735, 29248980, 43873470, 87746940]

約数ペア:

[(1, 87746940), (2, 43873470), (3, 29248980), (4, 21936735), (5, 17549388), (6, 14624490), (9, 9749660), (10, 8774694), (12, 7312245), (15, 5849796), (18, 4874830), (19, 4618260), (20, 4387347), (30, 2924898), (36, 2437415), (38, 2309130), (45, 1949932), (57, 1539420), (60, 1462449), (76, 1154565), (90, 974966), (95, 923652), (114, 769710), (171, 513140), (180, 487483), (190, 461826), (228, 384855), (285, 307884), (342, 256570), (380, 230913), (570, 153942), (684, 128285), (855, 102628), (1140, 76971), (1710, 51314), (3420, 25657)]