2143808720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{864439}}^1$

素因数の和:864483

約数の個数: 40

約数和(自身を含む): 5145146880

約数和(自身を除く): 3001338160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 864439, 1728878, 3457756, 4322195, 6915512, 8644390, 13831024, 17288780, 26797609, 34577560, 53595218, 69155120, 107190436, 133988045, 214380872, 267976090, 428761744, 535952180, 1071904360, 2143808720]

約数ペア:

[(1, 2143808720), (2, 1071904360), (4, 535952180), (5, 428761744), (8, 267976090), (10, 214380872), (16, 133988045), (20, 107190436), (31, 69155120), (40, 53595218), (62, 34577560), (80, 26797609), (124, 17288780), (155, 13831024), (248, 8644390), (310, 6915512), (496, 4322195), (620, 3457756), (1240, 1728878), (2480, 864439)]