189894220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5021}}^1$

素因数の和:5122

約数の個数: 48

約数和(自身を含む): 418473216

約数和(自身を除く): 228578996

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 5021, 7564, 9455, 10042, 18910, 20084, 25105, 37820, 50210, 100420, 155651, 306281, 311302, 612562, 622604, 778255, 1225124, 1531405, 1556510, 3062810, 3113020, 6125620, 9494711, 18989422, 37978844, 47473555, 94947110, 189894220]

約数ペア:

[(1, 189894220), (2, 94947110), (4, 47473555), (5, 37978844), (10, 18989422), (20, 9494711), (31, 6125620), (61, 3113020), (62, 3062810), (122, 1556510), (124, 1531405), (155, 1225124), (244, 778255), (305, 622604), (310, 612562), (610, 311302), (620, 306281), (1220, 155651), (1891, 100420), (3782, 50210), (5021, 37820), (7564, 25105), (9455, 20084), (10042, 18910)]