18736250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1153}}^1$

素因数の和:1188

約数の個数: 40

約数和(自身を含む): 37853508

約数和(自身を除く): 19117258

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1153, 1250, 1625, 2306, 3250, 5765, 8125, 11530, 14989, 16250, 28825, 29978, 57650, 74945, 144125, 149890, 288250, 374725, 720625, 749450, 1441250, 1873625, 3747250, 9368125, 18736250]

約数ペア:

[(1, 18736250), (2, 9368125), (5, 3747250), (10, 1873625), (13, 1441250), (25, 749450), (26, 720625), (50, 374725), (65, 288250), (125, 149890), (130, 144125), (250, 74945), (325, 57650), (625, 29978), (650, 28825), (1153, 16250), (1250, 14989), (1625, 11530), (2306, 8125), (3250, 5765)]