28266840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{3739}}^1$

素因数の和:3766

約数の個数: 128

約数和(自身を含む): 107712000

約数和(自身を除く): 79445160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3739, 3780, 7478, 7560, 11217, 14956, 18695, 22434, 26173, 29912, 33651, 37390, 44868, 52346, 56085, 67302, 74780, 78519, 89736, 100953, 104692, 112170, 130865, 134604, 149560, 157038, 168255, 201906, 209384, 224340, 235557, 261730, 269208, 314076, 336510, 392595, 403812, 448680, 471114, 504765, 523460, 628152, 673020, 706671, 785190, 807624, 942228, 1009530, 1046920, 1177785, 1346040, 1413342, 1570380, 1884456, 2019060, 2355570, 2826684, 3140760, 3533355, 4038120, 4711140, 5653368, 7066710, 9422280, 14133420, 28266840]

約数ペア:

[(1, 28266840), (2, 14133420), (3, 9422280), (4, 7066710), (5, 5653368), (6, 4711140), (7, 4038120), (8, 3533355), (9, 3140760), (10, 2826684), (12, 2355570), (14, 2019060), (15, 1884456), (18, 1570380), (20, 1413342), (21, 1346040), (24, 1177785), (27, 1046920), (28, 1009530), (30, 942228), (35, 807624), (36, 785190), (40, 706671), (42, 673020), (45, 628152), (54, 523460), (56, 504765), (60, 471114), (63, 448680), (70, 403812), (72, 392595), (84, 336510), (90, 314076), (105, 269208), (108, 261730), (120, 235557), (126, 224340), (135, 209384), (140, 201906), (168, 168255), (180, 157038), (189, 149560), (210, 134604), (216, 130865), (252, 112170), (270, 104692), (280, 100953), (315, 89736), (360, 78519), (378, 74780), (420, 67302), (504, 56085), (540, 52346), (630, 44868), (756, 37390), (840, 33651), (945, 29912), (1080, 26173), (1260, 22434), (1512, 18695), (1890, 14956), (2520, 11217), (3739, 7560), (3780, 7478)]