20806591668

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1\times {\mathrm{27763}}^1$

素因数の和:27981

約数の個数: 72

約数和(自身を含む): 51536425248

約数和(自身を除く): 30729833580

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 173, 228, 346, 361, 519, 692, 722, 1038, 1083, 1444, 2076, 2166, 3287, 4332, 6574, 9861, 13148, 19722, 27763, 39444, 55526, 62453, 83289, 111052, 124906, 166578, 187359, 249812, 333156, 374718, 527497, 749436, 1054994, 1582491, 2109988, 3164982, 4802999, 6329964, 9605998, 10022443, 14408997, 19211996, 20044886, 28817994, 30067329, 40089772, 57635988, 60134658, 91256981, 120269316, 182513962, 273770943, 365027924, 547541886, 1095083772, 1733882639, 3467765278, 5201647917, 6935530556, 10403295834, 20806591668]

約数ペア:

[(1, 20806591668), (2, 10403295834), (3, 6935530556), (4, 5201647917), (6, 3467765278), (12, 1733882639), (19, 1095083772), (38, 547541886), (57, 365027924), (76, 273770943), (114, 182513962), (173, 120269316), (228, 91256981), (346, 60134658), (361, 57635988), (519, 40089772), (692, 30067329), (722, 28817994), (1038, 20044886), (1083, 19211996), (1444, 14408997), (2076, 10022443), (2166, 9605998), (3287, 6329964), (4332, 4802999), (6574, 3164982), (9861, 2109988), (13148, 1582491), (19722, 1054994), (27763, 749436), (39444, 527497), (55526, 374718), (62453, 333156), (83289, 249812), (111052, 187359), (124906, 166578)]