31021380

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 105303744

約数和(自身を除く): 74282364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 243, 260, 270, 324, 351, 390, 405, 468, 486, 491, 540, 585, 702, 780, 810, 972, 982, 1053, 1170, 1215, 1404, 1473, 1620, 1755, 1964, 2106, 2340, 2430, 2455, 2946, 3159, 3510, 4212, 4419, 4860, 4910, 5265, 5892, 6318, 6383, 7020, 7365, 8838, 9820, 10530, 12636, 12766, 13257, 14730, 15795, 17676, 19149, 21060, 22095, 25532, 26514, 29460, 31590, 31915, 38298, 39771, 44190, 53028, 57447, 63180, 63830, 66285, 76596, 79542, 88380, 95745, 114894, 119313, 127660, 132570, 159084, 172341, 191490, 198855, 229788, 238626, 265140, 287235, 344682, 382980, 397710, 477252, 517023, 574470, 596565, 689364, 795420, 861705, 1034046, 1148940, 1193130, 1551069, 1723410, 2068092, 2386260, 2585115, 3102138, 3446820, 5170230, 6204276, 7755345, 10340460, 15510690, 31021380]

約数ペア:

[(1, 31021380), (2, 15510690), (3, 10340460), (4, 7755345), (5, 6204276), (6, 5170230), (9, 3446820), (10, 3102138), (12, 2585115), (13, 2386260), (15, 2068092), (18, 1723410), (20, 1551069), (26, 1193130), (27, 1148940), (30, 1034046), (36, 861705), (39, 795420), (45, 689364), (52, 596565), (54, 574470), (60, 517023), (65, 477252), (78, 397710), (81, 382980), (90, 344682), (108, 287235), (117, 265140), (130, 238626), (135, 229788), (156, 198855), (162, 191490), (180, 172341), (195, 159084), (234, 132570), (243, 127660), (260, 119313), (270, 114894), (324, 95745), (351, 88380), (390, 79542), (405, 76596), (468, 66285), (486, 63830), (491, 63180), (540, 57447), (585, 53028), (702, 44190), (780, 39771), (810, 38298), (972, 31915), (982, 31590), (1053, 29460), (1170, 26514), (1215, 25532), (1404, 22095), (1473, 21060), (1620, 19149), (1755, 17676), (1964, 15795), (2106, 14730), (2340, 13257), (2430, 12766), (2455, 12636), (2946, 10530), (3159, 9820), (3510, 8838), (4212, 7365), (4419, 7020), (4860, 6383), (4910, 6318), (5265, 5892)]