18992760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{971}}^1$

素因数の和:1148

約数の個数: 64

約数和(自身を含む): 57386880

約数和(自身を除く): 38394120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 971, 978, 1304, 1630, 1942, 1956, 2445, 2913, 3260, 3884, 3912, 4855, 4890, 5826, 6520, 7768, 9710, 9780, 11652, 14565, 19420, 19560, 23304, 29130, 38840, 58260, 116520, 158273, 316546, 474819, 633092, 791365, 949638, 1266184, 1582730, 1899276, 2374095, 3165460, 3798552, 4748190, 6330920, 9496380, 18992760]

約数ペア:

[(1, 18992760), (2, 9496380), (3, 6330920), (4, 4748190), (5, 3798552), (6, 3165460), (8, 2374095), (10, 1899276), (12, 1582730), (15, 1266184), (20, 949638), (24, 791365), (30, 633092), (40, 474819), (60, 316546), (120, 158273), (163, 116520), (326, 58260), (489, 38840), (652, 29130), (815, 23304), (971, 19560), (978, 19420), (1304, 14565), (1630, 11652), (1942, 9780), (1956, 9710), (2445, 7768), (2913, 6520), (3260, 5826), (3884, 4890), (3912, 4855)]