17906840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2063}}^1$

素因数の和:2112

約数の個数: 64

約数和(自身を含む): 47554560

約数和(自身を除く): 29647720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2063, 2170, 4126, 4340, 8252, 8680, 10315, 14441, 16504, 20630, 28882, 41260, 57764, 63953, 72205, 82520, 115528, 127906, 144410, 255812, 288820, 319765, 447671, 511624, 577640, 639530, 895342, 1279060, 1790684, 2238355, 2558120, 3581368, 4476710, 8953420, 17906840]

約数ペア:

[(1, 17906840), (2, 8953420), (4, 4476710), (5, 3581368), (7, 2558120), (8, 2238355), (10, 1790684), (14, 1279060), (20, 895342), (28, 639530), (31, 577640), (35, 511624), (40, 447671), (56, 319765), (62, 288820), (70, 255812), (124, 144410), (140, 127906), (155, 115528), (217, 82520), (248, 72205), (280, 63953), (310, 57764), (434, 41260), (620, 28882), (868, 20630), (1085, 16504), (1240, 14441), (1736, 10315), (2063, 8680), (2170, 8252), (4126, 4340)]