15721289985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{8171}}^1$

素因数の和:8398

約数の個数: 64

約数和(自身を含む): 27269637120

約数和(自身を除く): 11548347135

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 157, 215, 285, 471, 645, 785, 817, 2355, 2451, 2983, 4085, 6751, 8171, 8949, 12255, 14915, 20253, 24513, 33755, 40855, 44745, 101265, 122565, 128269, 155249, 351353, 384807, 465747, 641345, 776245, 1054059, 1282847, 1756765, 1924035, 2328735, 3848541, 5270295, 6414235, 6675707, 19242705, 20027121, 24374093, 33378535, 55162421, 73122279, 100135605, 121870465, 165487263, 275812105, 365611395, 827436315, 1048085999, 3144257997, 5240429995, 15721289985]

約数ペア:

[(1, 15721289985), (3, 5240429995), (5, 3144257997), (15, 1048085999), (19, 827436315), (43, 365611395), (57, 275812105), (95, 165487263), (129, 121870465), (157, 100135605), (215, 73122279), (285, 55162421), (471, 33378535), (645, 24374093), (785, 20027121), (817, 19242705), (2355, 6675707), (2451, 6414235), (2983, 5270295), (4085, 3848541), (6751, 2328735), (8171, 1924035), (8949, 1756765), (12255, 1282847), (14915, 1054059), (20253, 776245), (24513, 641345), (33755, 465747), (40855, 384807), (44745, 351353), (101265, 155249), (122565, 128269)]