20121490206

素因数分解:

$2^1\times 3^3\times {\mathrm{157}}^1\times {\mathrm{557}}^1\times {\mathrm{4261}}^1$

素因数の和:4986

約数の個数: 64

約数和(自身を含む): 45090596160

約数和(自身を除く): 24969105954

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 157, 314, 471, 557, 942, 1114, 1413, 1671, 2826, 3342, 4239, 4261, 5013, 8478, 8522, 10026, 12783, 15039, 25566, 30078, 38349, 76698, 87449, 115047, 174898, 230094, 262347, 524694, 668977, 787041, 1337954, 1574082, 2006931, 2361123, 2373377, 4013862, 4722246, 4746754, 6020793, 7120131, 12041586, 14240262, 18062379, 21360393, 36124758, 42720786, 64081179, 128162358, 372620189, 745240378, 1117860567, 2235721134, 3353581701, 6707163402, 10060745103, 20121490206]

約数ペア:

[(1, 20121490206), (2, 10060745103), (3, 6707163402), (6, 3353581701), (9, 2235721134), (18, 1117860567), (27, 745240378), (54, 372620189), (157, 128162358), (314, 64081179), (471, 42720786), (557, 36124758), (942, 21360393), (1114, 18062379), (1413, 14240262), (1671, 12041586), (2826, 7120131), (3342, 6020793), (4239, 4746754), (4261, 4722246), (5013, 4013862), (8478, 2373377), (8522, 2361123), (10026, 2006931), (12783, 1574082), (15039, 1337954), (25566, 787041), (30078, 668977), (38349, 524694), (76698, 262347), (87449, 230094), (115047, 174898)]