28210480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20743}}^1$

素因数の和:20773

約数の個数: 40

約数和(自身を含む): 69450912

約数和(自身を除く): 41240432

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20743, 41486, 82972, 103715, 165944, 207430, 331888, 352631, 414860, 705262, 829720, 1410524, 1659440, 1763155, 2821048, 3526310, 5642096, 7052620, 14105240, 28210480]

約数ペア:

[(1, 28210480), (2, 14105240), (4, 7052620), (5, 5642096), (8, 3526310), (10, 2821048), (16, 1763155), (17, 1659440), (20, 1410524), (34, 829720), (40, 705262), (68, 414860), (80, 352631), (85, 331888), (136, 207430), (170, 165944), (272, 103715), (340, 82972), (680, 41486), (1360, 20743)]