18405960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{941}}^1$

素因数の和:1118

約数の個数: 64

約数和(自身を含む): 55615680

約数和(自身を除く): 37209720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 941, 978, 1304, 1630, 1882, 1956, 2445, 2823, 3260, 3764, 3912, 4705, 4890, 5646, 6520, 7528, 9410, 9780, 11292, 14115, 18820, 19560, 22584, 28230, 37640, 56460, 112920, 153383, 306766, 460149, 613532, 766915, 920298, 1227064, 1533830, 1840596, 2300745, 3067660, 3681192, 4601490, 6135320, 9202980, 18405960]

約数ペア:

[(1, 18405960), (2, 9202980), (3, 6135320), (4, 4601490), (5, 3681192), (6, 3067660), (8, 2300745), (10, 1840596), (12, 1533830), (15, 1227064), (20, 920298), (24, 766915), (30, 613532), (40, 460149), (60, 306766), (120, 153383), (163, 112920), (326, 56460), (489, 37640), (652, 28230), (815, 22584), (941, 19560), (978, 18820), (1304, 14115), (1630, 11292), (1882, 9780), (1956, 9410), (2445, 7528), (2823, 6520), (3260, 5646), (3764, 4890), (3912, 4705)]