19704100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 28417820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 230, 260, 299, 325, 460, 575, 598, 650, 659, 1150, 1196, 1300, 1318, 1495, 2300, 2636, 2990, 3295, 5980, 6590, 7475, 8567, 13180, 14950, 15157, 16475, 17134, 29900, 30314, 32950, 34268, 42835, 60628, 65900, 75785, 85670, 151570, 171340, 197041, 214175, 303140, 378925, 394082, 428350, 757850, 788164, 856700, 985205, 1515700, 1970410, 3940820, 4926025, 9852050, 19704100]

約数ペア:

[(1, 19704100), (2, 9852050), (4, 4926025), (5, 3940820), (10, 1970410), (13, 1515700), (20, 985205), (23, 856700), (25, 788164), (26, 757850), (46, 428350), (50, 394082), (52, 378925), (65, 303140), (92, 214175), (100, 197041), (115, 171340), (130, 151570), (230, 85670), (260, 75785), (299, 65900), (325, 60628), (460, 42835), (575, 34268), (598, 32950), (650, 30314), (659, 29900), (1150, 17134), (1196, 16475), (1300, 15157), (1318, 14950), (1495, 13180), (2300, 8567), (2636, 7475), (2990, 6590), (3295, 5980)]