138837220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3671}}^1$

素因数の和:3772

約数の個数: 48

約数和(自身を含む): 305980416

約数和(自身を除く): 167143196

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3671, 3782, 7342, 7564, 9455, 14684, 18355, 18910, 36710, 37820, 73420, 113801, 223931, 227602, 447862, 455204, 569005, 895724, 1119655, 1138010, 2239310, 2276020, 4478620, 6941861, 13883722, 27767444, 34709305, 69418610, 138837220]

約数ペア:

[(1, 138837220), (2, 69418610), (4, 34709305), (5, 27767444), (10, 13883722), (20, 6941861), (31, 4478620), (61, 2276020), (62, 2239310), (122, 1138010), (124, 1119655), (155, 895724), (244, 569005), (305, 455204), (310, 447862), (610, 227602), (620, 223931), (1220, 113801), (1891, 73420), (3671, 37820), (3782, 36710), (7342, 18910), (7564, 18355), (9455, 14684)]