20178769988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89599}}^1$

素因数の和:89748

約数の個数: 48

約数和(自身を含む): 39197491200

約数和(自身を除く): 19018721212

約数列:

[1, 2, 4, 13, 26, 52, 61, 71, 122, 142, 244, 284, 793, 923, 1586, 1846, 3172, 3692, 4331, 8662, 17324, 56303, 89599, 112606, 179198, 225212, 358396, 1164787, 2329574, 4659148, 5465539, 6361529, 10931078, 12723058, 21862156, 25446116, 71052007, 82699877, 142104014, 165399754, 284208028, 330799508, 388053269, 776106538, 1552213076, 5044692497, 10089384994, 20178769988]

約数ペア:

[(1, 20178769988), (2, 10089384994), (4, 5044692497), (13, 1552213076), (26, 776106538), (52, 388053269), (61, 330799508), (71, 284208028), (122, 165399754), (142, 142104014), (244, 82699877), (284, 71052007), (793, 25446116), (923, 21862156), (1586, 12723058), (1846, 10931078), (3172, 6361529), (3692, 5465539), (4331, 4659148), (8662, 2329574), (17324, 1164787), (56303, 358396), (89599, 225212), (112606, 179198)]