181286980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 488509056

約数和(自身を除く): 307222076

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 211, 238, 266, 323, 340, 361, 380, 422, 476, 532, 595, 646, 665, 722, 844, 1055, 1190, 1292, 1330, 1444, 1477, 1615, 1805, 2110, 2261, 2380, 2527, 2660, 2954, 3230, 3587, 3610, 4009, 4220, 4522, 5054, 5908, 6137, 6460, 7174, 7220, 7385, 8018, 9044, 10108, 11305, 12274, 12635, 14348, 14770, 16036, 17935, 20045, 22610, 24548, 25109, 25270, 28063, 29540, 30685, 35870, 40090, 42959, 45220, 50218, 50540, 56126, 61370, 68153, 71740, 76171, 80180, 85918, 100436, 112252, 122740, 125545, 136306, 140315, 152342, 171836, 214795, 251090, 272612, 280630, 304684, 340765, 380855, 429590, 477071, 502180, 533197, 561260, 681530, 761710, 859180, 954142, 1066394, 1294907, 1363060, 1523420, 1908284, 2132788, 2385355, 2589814, 2665985, 4770710, 5179628, 5331970, 6474535, 9064349, 9541420, 10663940, 12949070, 18128698, 25898140, 36257396, 45321745, 90643490, 181286980]

約数ペア:

[(1, 181286980), (2, 90643490), (4, 45321745), (5, 36257396), (7, 25898140), (10, 18128698), (14, 12949070), (17, 10663940), (19, 9541420), (20, 9064349), (28, 6474535), (34, 5331970), (35, 5179628), (38, 4770710), (68, 2665985), (70, 2589814), (76, 2385355), (85, 2132788), (95, 1908284), (119, 1523420), (133, 1363060), (140, 1294907), (170, 1066394), (190, 954142), (211, 859180), (238, 761710), (266, 681530), (323, 561260), (340, 533197), (361, 502180), (380, 477071), (422, 429590), (476, 380855), (532, 340765), (595, 304684), (646, 280630), (665, 272612), (722, 251090), (844, 214795), (1055, 171836), (1190, 152342), (1292, 140315), (1330, 136306), (1444, 125545), (1477, 122740), (1615, 112252), (1805, 100436), (2110, 85918), (2261, 80180), (2380, 76171), (2527, 71740), (2660, 68153), (2954, 61370), (3230, 56126), (3587, 50540), (3610, 50218), (4009, 45220), (4220, 42959), (4522, 40090), (5054, 35870), (5908, 30685), (6137, 29540), (6460, 28063), (7174, 25270), (7220, 25109), (7385, 24548), (8018, 22610), (9044, 20045), (10108, 17935), (11305, 16036), (12274, 14770), (12635, 14348)]