16440180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 47472096

約数和(自身を除く): 31031916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 163, 164, 205, 246, 326, 410, 489, 492, 615, 652, 815, 820, 978, 1230, 1630, 1681, 1956, 2445, 2460, 3260, 3362, 4890, 5043, 6683, 6724, 8405, 9780, 10086, 13366, 16810, 20049, 20172, 25215, 26732, 33415, 33620, 40098, 50430, 66830, 80196, 100245, 100860, 133660, 200490, 274003, 400980, 548006, 822009, 1096012, 1370015, 1644018, 2740030, 3288036, 4110045, 5480060, 8220090, 16440180]

約数ペア:

[(1, 16440180), (2, 8220090), (3, 5480060), (4, 4110045), (5, 3288036), (6, 2740030), (10, 1644018), (12, 1370015), (15, 1096012), (20, 822009), (30, 548006), (41, 400980), (60, 274003), (82, 200490), (123, 133660), (163, 100860), (164, 100245), (205, 80196), (246, 66830), (326, 50430), (410, 40098), (489, 33620), (492, 33415), (615, 26732), (652, 25215), (815, 20172), (820, 20049), (978, 16810), (1230, 13366), (1630, 10086), (1681, 9780), (1956, 8405), (2445, 6724), (2460, 6683), (3260, 5043), (3362, 4890)]