81734240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72977}}^1$

素因数の和:72999

約数の個数: 48

約数和(自身を含む): 220685472

約数和(自身を除く): 138951232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72977, 145954, 291908, 364885, 510839, 583816, 729770, 1021678, 1167632, 1459540, 2043356, 2335264, 2554195, 2919080, 4086712, 5108390, 5838160, 8173424, 10216780, 11676320, 16346848, 20433560, 40867120, 81734240]

約数ペア:

[(1, 81734240), (2, 40867120), (4, 20433560), (5, 16346848), (7, 11676320), (8, 10216780), (10, 8173424), (14, 5838160), (16, 5108390), (20, 4086712), (28, 2919080), (32, 2554195), (35, 2335264), (40, 2043356), (56, 1459540), (70, 1167632), (80, 1021678), (112, 729770), (140, 583816), (160, 510839), (224, 364885), (280, 291908), (560, 145954), (1120, 72977)]