71849925

素因数分解:

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

素因数の和:70

約数の個数: 108

約数和(自身を含む): 158040480

約数和(自身を除く): 86190555

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 49, 57, 63, 75, 95, 105, 133, 147, 171, 175, 225, 245, 285, 315, 343, 399, 441, 475, 525, 665, 735, 855, 931, 1029, 1197, 1225, 1425, 1575, 1715, 1995, 2205, 2401, 2793, 3087, 3325, 3675, 4275, 4655, 5145, 5985, 6517, 7203, 8379, 8575, 9975, 11025, 12005, 13965, 15435, 16807, 19551, 21609, 23275, 25725, 29925, 32585, 36015, 41895, 45619, 50421, 58653, 60025, 69825, 77175, 84035, 97755, 108045, 136857, 151263, 162925, 180075, 209475, 228095, 252105, 293265, 319333, 410571, 420175, 488775, 540225, 684285, 756315, 957999, 1140475, 1260525, 1466325, 1596665, 2052855, 2873997, 3421425, 3781575, 4789995, 7983325, 10264275, 14369985, 23949975, 71849925]

約数ペア:

[(1, 71849925), (3, 23949975), (5, 14369985), (7, 10264275), (9, 7983325), (15, 4789995), (19, 3781575), (21, 3421425), (25, 2873997), (35, 2052855), (45, 1596665), (49, 1466325), (57, 1260525), (63, 1140475), (75, 957999), (95, 756315), (105, 684285), (133, 540225), (147, 488775), (171, 420175), (175, 410571), (225, 319333), (245, 293265), (285, 252105), (315, 228095), (343, 209475), (399, 180075), (441, 162925), (475, 151263), (525, 136857), (665, 108045), (735, 97755), (855, 84035), (931, 77175), (1029, 69825), (1197, 60025), (1225, 58653), (1425, 50421), (1575, 45619), (1715, 41895), (1995, 36015), (2205, 32585), (2401, 29925), (2793, 25725), (3087, 23275), (3325, 21609), (3675, 19551), (4275, 16807), (4655, 15435), (5145, 13965), (5985, 12005), (6517, 11025), (7203, 9975), (8379, 8575)]