28252980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1319}}^1$

素因数の和:1358

約数の個数: 144

約数和(自身を含む): 103783680

約数和(自身を除く): 75530700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1319, 1428, 1530, 1785, 2142, 2380, 2638, 3060, 3570, 3957, 4284, 5276, 5355, 6595, 7140, 7914, 9233, 10710, 11871, 13190, 15828, 18466, 19785, 21420, 22423, 23742, 26380, 27699, 36932, 39570, 44846, 46165, 47484, 55398, 59355, 67269, 79140, 83097, 89692, 92330, 110796, 112115, 118710, 134538, 138495, 156961, 166194, 184660, 201807, 224230, 237420, 269076, 276990, 313922, 332388, 336345, 403614, 415485, 448460, 470883, 553980, 627844, 672690, 784805, 807228, 830970, 941766, 1009035, 1345380, 1412649, 1569610, 1661940, 1883532, 2018070, 2354415, 2825298, 3139220, 4036140, 4708830, 5650596, 7063245, 9417660, 14126490, 28252980]

約数ペア:

[(1, 28252980), (2, 14126490), (3, 9417660), (4, 7063245), (5, 5650596), (6, 4708830), (7, 4036140), (9, 3139220), (10, 2825298), (12, 2354415), (14, 2018070), (15, 1883532), (17, 1661940), (18, 1569610), (20, 1412649), (21, 1345380), (28, 1009035), (30, 941766), (34, 830970), (35, 807228), (36, 784805), (42, 672690), (45, 627844), (51, 553980), (60, 470883), (63, 448460), (68, 415485), (70, 403614), (84, 336345), (85, 332388), (90, 313922), (102, 276990), (105, 269076), (119, 237420), (126, 224230), (140, 201807), (153, 184660), (170, 166194), (180, 156961), (204, 138495), (210, 134538), (238, 118710), (252, 112115), (255, 110796), (306, 92330), (315, 89692), (340, 83097), (357, 79140), (420, 67269), (476, 59355), (510, 55398), (595, 47484), (612, 46165), (630, 44846), (714, 39570), (765, 36932), (1020, 27699), (1071, 26380), (1190, 23742), (1260, 22423), (1319, 21420), (1428, 19785), (1530, 18466), (1785, 15828), (2142, 13190), (2380, 11871), (2638, 10710), (3060, 9233), (3570, 7914), (3957, 7140), (4284, 6595), (5276, 5355)]