20855528068

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1237}}^1\times {\mathrm{2287}}^1$

素因数の和:3644

約数の個数: 48

約数和(自身を含む): 38862503680

約数和(自身を除く): 18006975612

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1237, 1843, 2287, 2474, 3686, 4574, 4948, 7372, 9148, 23503, 43453, 47006, 86906, 94012, 119989, 173812, 221839, 239978, 443678, 479956, 887356, 2279791, 2829019, 4214941, 4559582, 5658038, 8429882, 9119164, 11316076, 16859764, 53751361, 107502722, 215005444, 274414843, 548829686, 1097659372, 5213882017, 10427764034, 20855528068]

約数ペア:

[(1, 20855528068), (2, 10427764034), (4, 5213882017), (19, 1097659372), (38, 548829686), (76, 274414843), (97, 215005444), (194, 107502722), (388, 53751361), (1237, 16859764), (1843, 11316076), (2287, 9119164), (2474, 8429882), (3686, 5658038), (4574, 4559582), (4948, 4214941), (7372, 2829019), (9148, 2279791), (23503, 887356), (43453, 479956), (47006, 443678), (86906, 239978), (94012, 221839), (119989, 173812)]