1777444840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{4889}}^1$

素因数の和:5110

約数の個数: 64

約数和(自身を含む): 4092930000

約数和(自身を除く): 2315485160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 149, 244, 298, 305, 488, 596, 610, 745, 1192, 1220, 1490, 2440, 2980, 4889, 5960, 9089, 9778, 18178, 19556, 24445, 36356, 39112, 45445, 48890, 72712, 90890, 97780, 181780, 195560, 298229, 363560, 596458, 728461, 1192916, 1456922, 1491145, 2385832, 2913844, 2982290, 3642305, 5827688, 5964580, 7284610, 11929160, 14569220, 29138440, 44436121, 88872242, 177744484, 222180605, 355488968, 444361210, 888722420, 1777444840]

約数ペア:

[(1, 1777444840), (2, 888722420), (4, 444361210), (5, 355488968), (8, 222180605), (10, 177744484), (20, 88872242), (40, 44436121), (61, 29138440), (122, 14569220), (149, 11929160), (244, 7284610), (298, 5964580), (305, 5827688), (488, 3642305), (596, 2982290), (610, 2913844), (745, 2385832), (1192, 1491145), (1220, 1456922), (1490, 1192916), (2440, 728461), (2980, 596458), (4889, 363560), (5960, 298229), (9089, 195560), (9778, 181780), (18178, 97780), (19556, 90890), (24445, 72712), (36356, 48890), (39112, 45445)]