31288040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{853}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 81164160

約数和(自身を除く): 49876120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 853, 917, 1048, 1310, 1706, 1834, 2620, 3412, 3668, 4265, 4585, 5240, 5971, 6824, 7336, 8530, 9170, 11942, 17060, 18340, 23884, 29855, 34120, 36680, 47768, 59710, 111743, 119420, 223486, 238840, 446972, 558715, 782201, 893944, 1117430, 1564402, 2234860, 3128804, 3911005, 4469720, 6257608, 7822010, 15644020, 31288040]

約数ペア:

[(1, 31288040), (2, 15644020), (4, 7822010), (5, 6257608), (7, 4469720), (8, 3911005), (10, 3128804), (14, 2234860), (20, 1564402), (28, 1117430), (35, 893944), (40, 782201), (56, 558715), (70, 446972), (131, 238840), (140, 223486), (262, 119420), (280, 111743), (524, 59710), (655, 47768), (853, 36680), (917, 34120), (1048, 29855), (1310, 23884), (1706, 18340), (1834, 17060), (2620, 11942), (3412, 9170), (3668, 8530), (4265, 7336), (4585, 6824), (5240, 5971)]