13181220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 44396352

約数和(自身を除く): 31215132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 131, 156, 172, 180, 195, 215, 234, 258, 260, 262, 387, 390, 393, 430, 468, 516, 524, 559, 585, 645, 655, 774, 780, 786, 860, 1118, 1170, 1179, 1290, 1310, 1548, 1572, 1677, 1703, 1935, 1965, 2236, 2340, 2358, 2580, 2620, 2795, 3354, 3406, 3870, 3930, 4716, 5031, 5109, 5590, 5633, 5895, 6708, 6812, 7740, 7860, 8385, 8515, 10062, 10218, 11180, 11266, 11790, 15327, 16770, 16899, 17030, 20124, 20436, 22532, 23580, 25155, 25545, 28165, 30654, 33540, 33798, 34060, 50310, 50697, 51090, 56330, 61308, 67596, 73229, 76635, 84495, 100620, 101394, 102180, 112660, 146458, 153270, 168990, 202788, 219687, 253485, 292916, 306540, 337980, 366145, 439374, 506970, 659061, 732290, 878748, 1013940, 1098435, 1318122, 1464580, 2196870, 2636244, 3295305, 4393740, 6590610, 13181220]

約数ペア:

[(1, 13181220), (2, 6590610), (3, 4393740), (4, 3295305), (5, 2636244), (6, 2196870), (9, 1464580), (10, 1318122), (12, 1098435), (13, 1013940), (15, 878748), (18, 732290), (20, 659061), (26, 506970), (30, 439374), (36, 366145), (39, 337980), (43, 306540), (45, 292916), (52, 253485), (60, 219687), (65, 202788), (78, 168990), (86, 153270), (90, 146458), (117, 112660), (129, 102180), (130, 101394), (131, 100620), (156, 84495), (172, 76635), (180, 73229), (195, 67596), (215, 61308), (234, 56330), (258, 51090), (260, 50697), (262, 50310), (387, 34060), (390, 33798), (393, 33540), (430, 30654), (468, 28165), (516, 25545), (524, 25155), (559, 23580), (585, 22532), (645, 20436), (655, 20124), (774, 17030), (780, 16899), (786, 16770), (860, 15327), (1118, 11790), (1170, 11266), (1179, 11180), (1290, 10218), (1310, 10062), (1548, 8515), (1572, 8385), (1677, 7860), (1703, 7740), (1935, 6812), (1965, 6708), (2236, 5895), (2340, 5633), (2358, 5590), (2580, 5109), (2620, 5031), (2795, 4716), (3354, 3930), (3406, 3870)]