21887640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 71763120

約数和(自身を除く): 49875480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 163, 180, 326, 360, 373, 489, 652, 746, 815, 978, 1119, 1304, 1467, 1492, 1630, 1865, 1956, 2238, 2445, 2934, 2984, 3260, 3357, 3730, 3912, 4476, 4890, 5595, 5868, 6520, 6714, 7335, 7460, 8952, 9780, 11190, 11736, 13428, 14670, 14920, 16785, 19560, 22380, 26856, 29340, 33570, 44760, 58680, 60799, 67140, 121598, 134280, 182397, 243196, 303995, 364794, 486392, 547191, 607990, 729588, 911985, 1094382, 1215980, 1459176, 1823970, 2188764, 2431960, 2735955, 3647940, 4377528, 5471910, 7295880, 10943820, 21887640]

約数ペア:

[(1, 21887640), (2, 10943820), (3, 7295880), (4, 5471910), (5, 4377528), (6, 3647940), (8, 2735955), (9, 2431960), (10, 2188764), (12, 1823970), (15, 1459176), (18, 1215980), (20, 1094382), (24, 911985), (30, 729588), (36, 607990), (40, 547191), (45, 486392), (60, 364794), (72, 303995), (90, 243196), (120, 182397), (163, 134280), (180, 121598), (326, 67140), (360, 60799), (373, 58680), (489, 44760), (652, 33570), (746, 29340), (815, 26856), (978, 22380), (1119, 19560), (1304, 16785), (1467, 14920), (1492, 14670), (1630, 13428), (1865, 11736), (1956, 11190), (2238, 9780), (2445, 8952), (2934, 7460), (2984, 7335), (3260, 6714), (3357, 6520), (3730, 5868), (3912, 5595), (4476, 4890)]