1220395540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4271}}^1$

素因数の和:4457

約数の個数: 96

約数和(自身を含む): 3175087104

約数和(自身を除く): 1954691564

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 157, 182, 260, 314, 364, 455, 628, 785, 910, 1099, 1570, 1820, 2041, 2198, 3140, 4082, 4271, 4396, 5495, 8164, 8542, 10205, 10990, 14287, 17084, 20410, 21355, 21980, 28574, 29897, 40820, 42710, 55523, 57148, 59794, 71435, 85420, 111046, 119588, 142870, 149485, 222092, 277615, 285740, 298970, 388661, 555230, 597940, 670547, 777322, 1110460, 1341094, 1554644, 1943305, 2682188, 3352735, 3886610, 4693829, 6705470, 7773220, 8717111, 9387658, 13410940, 17434222, 18775316, 23469145, 34868444, 43585555, 46938290, 61019777, 87171110, 93876580, 122039554, 174342220, 244079108, 305098885, 610197770, 1220395540]

約数ペア:

[(1, 1220395540), (2, 610197770), (4, 305098885), (5, 244079108), (7, 174342220), (10, 122039554), (13, 93876580), (14, 87171110), (20, 61019777), (26, 46938290), (28, 43585555), (35, 34868444), (52, 23469145), (65, 18775316), (70, 17434222), (91, 13410940), (130, 9387658), (140, 8717111), (157, 7773220), (182, 6705470), (260, 4693829), (314, 3886610), (364, 3352735), (455, 2682188), (628, 1943305), (785, 1554644), (910, 1341094), (1099, 1110460), (1570, 777322), (1820, 670547), (2041, 597940), (2198, 555230), (3140, 388661), (4082, 298970), (4271, 285740), (4396, 277615), (5495, 222092), (8164, 149485), (8542, 142870), (10205, 119588), (10990, 111046), (14287, 85420), (17084, 71435), (20410, 59794), (21355, 57148), (21980, 55523), (28574, 42710), (29897, 40820)]