20592990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 61746048

約数和(自身を除く): 41153058

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 31, 33, 45, 55, 61, 62, 66, 90, 93, 99, 110, 121, 122, 155, 165, 183, 186, 198, 242, 279, 305, 310, 330, 341, 363, 366, 465, 495, 549, 558, 605, 610, 671, 682, 726, 915, 930, 990, 1023, 1089, 1098, 1210, 1342, 1395, 1705, 1815, 1830, 1891, 2013, 2046, 2178, 2745, 2790, 3069, 3355, 3410, 3630, 3751, 3782, 4026, 5115, 5445, 5490, 5673, 6039, 6138, 6710, 7381, 7502, 9455, 10065, 10230, 10890, 11253, 11346, 12078, 14762, 15345, 17019, 18755, 18910, 20130, 20801, 22143, 22506, 28365, 30195, 30690, 33759, 34038, 36905, 37510, 41602, 44286, 56265, 56730, 60390, 62403, 66429, 67518, 73810, 85095, 104005, 110715, 112530, 124806, 132858, 168795, 170190, 187209, 208010, 221430, 228811, 312015, 332145, 337590, 374418, 457622, 624030, 664290, 686433, 936045, 1144055, 1372866, 1872090, 2059299, 2288110, 3432165, 4118598, 6864330, 10296495, 20592990]

約数ペア:

[(1, 20592990), (2, 10296495), (3, 6864330), (5, 4118598), (6, 3432165), (9, 2288110), (10, 2059299), (11, 1872090), (15, 1372866), (18, 1144055), (22, 936045), (30, 686433), (31, 664290), (33, 624030), (45, 457622), (55, 374418), (61, 337590), (62, 332145), (66, 312015), (90, 228811), (93, 221430), (99, 208010), (110, 187209), (121, 170190), (122, 168795), (155, 132858), (165, 124806), (183, 112530), (186, 110715), (198, 104005), (242, 85095), (279, 73810), (305, 67518), (310, 66429), (330, 62403), (341, 60390), (363, 56730), (366, 56265), (465, 44286), (495, 41602), (549, 37510), (558, 36905), (605, 34038), (610, 33759), (671, 30690), (682, 30195), (726, 28365), (915, 22506), (930, 22143), (990, 20801), (1023, 20130), (1089, 18910), (1098, 18755), (1210, 17019), (1342, 15345), (1395, 14762), (1705, 12078), (1815, 11346), (1830, 11253), (1891, 10890), (2013, 10230), (2046, 10065), (2178, 9455), (2745, 7502), (2790, 7381), (3069, 6710), (3355, 6138), (3410, 6039), (3630, 5673), (3751, 5490), (3782, 5445), (4026, 5115)]