20178812048

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{673}}^1\times {\mathrm{110233}}^1$

素因数の和:110931

約数の個数: 40

約数和(自身を含む): 41458125528

約数和(自身を除く): 21279313480

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 673, 1346, 2692, 5384, 10768, 11441, 22882, 45764, 91528, 110233, 183056, 220466, 440932, 881864, 1763728, 1873961, 3747922, 7495844, 14991688, 29983376, 74186809, 148373618, 296747236, 593494472, 1186988944, 1261175753, 2522351506, 5044703012, 10089406024, 20178812048]

約数ペア:

[(1, 20178812048), (2, 10089406024), (4, 5044703012), (8, 2522351506), (16, 1261175753), (17, 1186988944), (34, 593494472), (68, 296747236), (136, 148373618), (272, 74186809), (673, 29983376), (1346, 14991688), (2692, 7495844), (5384, 3747922), (10768, 1873961), (11441, 1763728), (22882, 881864), (45764, 440932), (91528, 220466), (110233, 183056)]