30205980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 192

約数和(自身を含む): 109992960

約数和(自身を除く): 79786980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 61, 63, 70, 84, 90, 105, 108, 122, 126, 131, 135, 140, 180, 183, 189, 210, 244, 252, 262, 270, 305, 315, 366, 378, 393, 420, 427, 524, 540, 549, 610, 630, 655, 732, 756, 786, 854, 915, 917, 945, 1098, 1179, 1220, 1260, 1281, 1310, 1572, 1647, 1708, 1830, 1834, 1890, 1965, 2135, 2196, 2358, 2562, 2620, 2745, 2751, 3294, 3537, 3660, 3668, 3780, 3843, 3930, 4270, 4585, 4716, 5124, 5490, 5502, 5895, 6405, 6588, 7074, 7686, 7860, 7991, 8235, 8253, 8540, 9170, 10980, 11004, 11529, 11790, 12810, 13755, 14148, 15372, 15982, 16470, 16506, 17685, 18340, 19215, 23058, 23580, 23973, 24759, 25620, 27510, 31964, 32940, 33012, 35370, 38430, 39955, 41265, 46116, 47946, 49518, 55020, 55937, 57645, 70740, 71919, 76860, 79910, 82530, 95892, 99036, 111874, 115290, 119865, 123795, 143838, 159820, 165060, 167811, 215757, 223748, 230580, 239730, 247590, 279685, 287676, 335622, 359595, 431514, 479460, 495180, 503433, 559370, 671244, 719190, 839055, 863028, 1006866, 1078785, 1118740, 1438380, 1510299, 1678110, 2013732, 2157570, 2517165, 3020598, 3356220, 4315140, 5034330, 6041196, 7551495, 10068660, 15102990, 30205980]

約数ペア:

[(1, 30205980), (2, 15102990), (3, 10068660), (4, 7551495), (5, 6041196), (6, 5034330), (7, 4315140), (9, 3356220), (10, 3020598), (12, 2517165), (14, 2157570), (15, 2013732), (18, 1678110), (20, 1510299), (21, 1438380), (27, 1118740), (28, 1078785), (30, 1006866), (35, 863028), (36, 839055), (42, 719190), (45, 671244), (54, 559370), (60, 503433), (61, 495180), (63, 479460), (70, 431514), (84, 359595), (90, 335622), (105, 287676), (108, 279685), (122, 247590), (126, 239730), (131, 230580), (135, 223748), (140, 215757), (180, 167811), (183, 165060), (189, 159820), (210, 143838), (244, 123795), (252, 119865), (262, 115290), (270, 111874), (305, 99036), (315, 95892), (366, 82530), (378, 79910), (393, 76860), (420, 71919), (427, 70740), (524, 57645), (540, 55937), (549, 55020), (610, 49518), (630, 47946), (655, 46116), (732, 41265), (756, 39955), (786, 38430), (854, 35370), (915, 33012), (917, 32940), (945, 31964), (1098, 27510), (1179, 25620), (1220, 24759), (1260, 23973), (1281, 23580), (1310, 23058), (1572, 19215), (1647, 18340), (1708, 17685), (1830, 16506), (1834, 16470), (1890, 15982), (1965, 15372), (2135, 14148), (2196, 13755), (2358, 12810), (2562, 11790), (2620, 11529), (2745, 11004), (2751, 10980), (3294, 9170), (3537, 8540), (3660, 8253), (3668, 8235), (3780, 7991), (3843, 7860), (3930, 7686), (4270, 7074), (4585, 6588), (4716, 6405), (5124, 5895), (5490, 5502)]