71761280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3617}}^1$

素因数の和:3667

約数の個数: 64

約数和(自身を含む): 177137280

約数和(自身を除く): 105376000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3617, 3968, 4960, 7234, 9920, 14468, 18085, 19840, 28936, 36170, 57872, 72340, 112127, 115744, 144680, 224254, 231488, 289360, 448508, 462976, 560635, 578720, 897016, 1121270, 1157440, 1794032, 2242540, 2314880, 3588064, 4485080, 7176128, 8970160, 14352256, 17940320, 35880640, 71761280]

約数ペア:

[(1, 71761280), (2, 35880640), (4, 17940320), (5, 14352256), (8, 8970160), (10, 7176128), (16, 4485080), (20, 3588064), (31, 2314880), (32, 2242540), (40, 1794032), (62, 1157440), (64, 1121270), (80, 897016), (124, 578720), (128, 560635), (155, 462976), (160, 448508), (248, 289360), (310, 231488), (320, 224254), (496, 144680), (620, 115744), (640, 112127), (992, 72340), (1240, 57872), (1984, 36170), (2480, 28936), (3617, 19840), (3968, 18085), (4960, 14468), (7234, 9920)]