87898880

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1597}}^1$

素因数の和:1661

約数の個数: 72

約数和(自身を含む): 215576592

約数和(自身を除く): 127677712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1280, 1376, 1597, 1720, 2752, 3194, 3440, 5504, 6388, 6880, 7985, 11008, 12776, 13760, 15970, 25552, 27520, 31940, 51104, 55040, 63880, 68671, 102208, 127760, 137342, 204416, 255520, 274684, 343355, 408832, 511040, 549368, 686710, 1022080, 1098736, 1373420, 2044160, 2197472, 2746840, 4394944, 5493680, 8789888, 10987360, 17579776, 21974720, 43949440, 87898880]

約数ペア:

[(1, 87898880), (2, 43949440), (4, 21974720), (5, 17579776), (8, 10987360), (10, 8789888), (16, 5493680), (20, 4394944), (32, 2746840), (40, 2197472), (43, 2044160), (64, 1373420), (80, 1098736), (86, 1022080), (128, 686710), (160, 549368), (172, 511040), (215, 408832), (256, 343355), (320, 274684), (344, 255520), (430, 204416), (640, 137342), (688, 127760), (860, 102208), (1280, 68671), (1376, 63880), (1597, 55040), (1720, 51104), (2752, 31940), (3194, 27520), (3440, 25552), (5504, 15970), (6388, 13760), (6880, 12776), (7985, 11008)]