28080228

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 73198944

約数和(自身を除く): 45118716

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 83, 121, 132, 166, 233, 242, 249, 332, 363, 466, 484, 498, 699, 726, 913, 932, 996, 1398, 1452, 1826, 2563, 2739, 2796, 3652, 5126, 5478, 7689, 10043, 10252, 10956, 15378, 19339, 20086, 28193, 30129, 30756, 38678, 40172, 56386, 58017, 60258, 77356, 84579, 112772, 116034, 120516, 169158, 212729, 232068, 338316, 425458, 638187, 850916, 1276374, 2340019, 2552748, 4680038, 7020057, 9360076, 14040114, 28080228]

約数ペア:

[(1, 28080228), (2, 14040114), (3, 9360076), (4, 7020057), (6, 4680038), (11, 2552748), (12, 2340019), (22, 1276374), (33, 850916), (44, 638187), (66, 425458), (83, 338316), (121, 232068), (132, 212729), (166, 169158), (233, 120516), (242, 116034), (249, 112772), (332, 84579), (363, 77356), (466, 60258), (484, 58017), (498, 56386), (699, 40172), (726, 38678), (913, 30756), (932, 30129), (996, 28193), (1398, 20086), (1452, 19339), (1826, 15378), (2563, 10956), (2739, 10252), (2796, 10043), (3652, 7689), (5126, 5478)]