72512140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{509}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 161935200

約数和(自身を除く): 89423060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 419, 509, 838, 1018, 1676, 2036, 2095, 2545, 4190, 5090, 7123, 8380, 8653, 10180, 14246, 17306, 28492, 34612, 35615, 43265, 71230, 86530, 142460, 173060, 213271, 426542, 853084, 1066355, 2132710, 3625607, 4265420, 7251214, 14502428, 18128035, 36256070, 72512140]

約数ペア:

[(1, 72512140), (2, 36256070), (4, 18128035), (5, 14502428), (10, 7251214), (17, 4265420), (20, 3625607), (34, 2132710), (68, 1066355), (85, 853084), (170, 426542), (340, 213271), (419, 173060), (509, 142460), (838, 86530), (1018, 71230), (1676, 43265), (2036, 35615), (2095, 34612), (2545, 28492), (4190, 17306), (5090, 14246), (7123, 10180), (8380, 8653)]