21865170400

素因数分解:

$2^5\times 5^2\times {\mathrm{211}}^1\times {\mathrm{129533}}^1$

素因数の和:129764

約数の個数: 72

約数和(自身を含む): 53631739224

約数和(自身を除く): 31766568824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 211, 400, 422, 800, 844, 1055, 1688, 2110, 3376, 4220, 5275, 6752, 8440, 10550, 16880, 21100, 33760, 42200, 84400, 129533, 168800, 259066, 518132, 647665, 1036264, 1295330, 2072528, 2590660, 3238325, 4145056, 5181320, 6476650, 10362640, 12953300, 20725280, 25906600, 27331463, 51813200, 54662926, 103626400, 109325852, 136657315, 218651704, 273314630, 437303408, 546629260, 683286575, 874606816, 1093258520, 1366573150, 2186517040, 2733146300, 4373034080, 5466292600, 10932585200, 21865170400]

約数ペア:

[(1, 21865170400), (2, 10932585200), (4, 5466292600), (5, 4373034080), (8, 2733146300), (10, 2186517040), (16, 1366573150), (20, 1093258520), (25, 874606816), (32, 683286575), (40, 546629260), (50, 437303408), (80, 273314630), (100, 218651704), (160, 136657315), (200, 109325852), (211, 103626400), (400, 54662926), (422, 51813200), (800, 27331463), (844, 25906600), (1055, 20725280), (1688, 12953300), (2110, 10362640), (3376, 6476650), (4220, 5181320), (5275, 4145056), (6752, 3238325), (8440, 2590660), (10550, 2072528), (16880, 1295330), (21100, 1036264), (33760, 647665), (42200, 518132), (84400, 259066), (129533, 168800)]