18616780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 49279104

約数和(自身を除く): 30662324

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 53, 65, 70, 91, 106, 130, 140, 182, 193, 212, 260, 265, 364, 371, 386, 455, 530, 689, 742, 772, 910, 965, 1060, 1351, 1378, 1484, 1820, 1855, 1930, 2509, 2702, 2756, 3445, 3710, 3860, 4823, 5018, 5404, 6755, 6890, 7420, 9646, 10036, 10229, 12545, 13510, 13780, 17563, 19292, 20458, 24115, 25090, 27020, 35126, 40916, 48230, 50180, 51145, 70252, 71603, 87815, 96460, 102290, 132977, 143206, 175630, 204580, 265954, 286412, 351260, 358015, 531908, 664885, 716030, 930839, 1329770, 1432060, 1861678, 2659540, 3723356, 4654195, 9308390, 18616780]

約数ペア:

[(1, 18616780), (2, 9308390), (4, 4654195), (5, 3723356), (7, 2659540), (10, 1861678), (13, 1432060), (14, 1329770), (20, 930839), (26, 716030), (28, 664885), (35, 531908), (52, 358015), (53, 351260), (65, 286412), (70, 265954), (91, 204580), (106, 175630), (130, 143206), (140, 132977), (182, 102290), (193, 96460), (212, 87815), (260, 71603), (265, 70252), (364, 51145), (371, 50180), (386, 48230), (455, 40916), (530, 35126), (689, 27020), (742, 25090), (772, 24115), (910, 20458), (965, 19292), (1060, 17563), (1351, 13780), (1378, 13510), (1484, 12545), (1820, 10229), (1855, 10036), (1930, 9646), (2509, 7420), (2702, 6890), (2756, 6755), (3445, 5404), (3710, 5018), (3860, 4823)]