28508220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 192

約数和(自身を含む): 99348480

約数和(自身を除く): 70840260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 31, 36, 39, 45, 52, 54, 60, 62, 65, 78, 90, 93, 108, 117, 124, 130, 131, 135, 155, 156, 180, 186, 195, 234, 260, 262, 270, 279, 310, 351, 372, 390, 393, 403, 465, 468, 524, 540, 558, 585, 620, 655, 702, 780, 786, 806, 837, 930, 1116, 1170, 1179, 1209, 1310, 1395, 1404, 1572, 1612, 1674, 1703, 1755, 1860, 1965, 2015, 2340, 2358, 2418, 2620, 2790, 3348, 3406, 3510, 3537, 3627, 3930, 4030, 4061, 4185, 4716, 4836, 5109, 5580, 5895, 6045, 6812, 7020, 7074, 7254, 7860, 8060, 8122, 8370, 8515, 10218, 10881, 11790, 12090, 12183, 14148, 14508, 15327, 16244, 16740, 17030, 17685, 18135, 20305, 20436, 21762, 23580, 24180, 24366, 25545, 30654, 34060, 35370, 36270, 36549, 40610, 43524, 45981, 48732, 51090, 52793, 54405, 60915, 61308, 70740, 72540, 73098, 76635, 81220, 91962, 102180, 105586, 108810, 109647, 121830, 146196, 153270, 158379, 182745, 183924, 211172, 217620, 219294, 229905, 243660, 263965, 306540, 316758, 365490, 438588, 459810, 475137, 527930, 548235, 633516, 730980, 791895, 919620, 950274, 1055860, 1096470, 1425411, 1583790, 1900548, 2192940, 2375685, 2850822, 3167580, 4751370, 5701644, 7127055, 9502740, 14254110, 28508220]

約数ペア:

[(1, 28508220), (2, 14254110), (3, 9502740), (4, 7127055), (5, 5701644), (6, 4751370), (9, 3167580), (10, 2850822), (12, 2375685), (13, 2192940), (15, 1900548), (18, 1583790), (20, 1425411), (26, 1096470), (27, 1055860), (30, 950274), (31, 919620), (36, 791895), (39, 730980), (45, 633516), (52, 548235), (54, 527930), (60, 475137), (62, 459810), (65, 438588), (78, 365490), (90, 316758), (93, 306540), (108, 263965), (117, 243660), (124, 229905), (130, 219294), (131, 217620), (135, 211172), (155, 183924), (156, 182745), (180, 158379), (186, 153270), (195, 146196), (234, 121830), (260, 109647), (262, 108810), (270, 105586), (279, 102180), (310, 91962), (351, 81220), (372, 76635), (390, 73098), (393, 72540), (403, 70740), (465, 61308), (468, 60915), (524, 54405), (540, 52793), (558, 51090), (585, 48732), (620, 45981), (655, 43524), (702, 40610), (780, 36549), (786, 36270), (806, 35370), (837, 34060), (930, 30654), (1116, 25545), (1170, 24366), (1179, 24180), (1209, 23580), (1310, 21762), (1395, 20436), (1404, 20305), (1572, 18135), (1612, 17685), (1674, 17030), (1703, 16740), (1755, 16244), (1860, 15327), (1965, 14508), (2015, 14148), (2340, 12183), (2358, 12090), (2418, 11790), (2620, 10881), (2790, 10218), (3348, 8515), (3406, 8370), (3510, 8122), (3537, 8060), (3627, 7860), (3930, 7254), (4030, 7074), (4061, 7020), (4185, 6812), (4716, 6045), (4836, 5895), (5109, 5580)]