28114380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:496

約数の個数: 144

約数和(自身を含む): 99537984

約数和(自身を除く): 71423604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 315, 318, 371, 420, 421, 477, 530, 630, 636, 742, 795, 842, 954, 1060, 1113, 1260, 1263, 1484, 1590, 1684, 1855, 1908, 2105, 2226, 2385, 2526, 2947, 3180, 3339, 3710, 3789, 4210, 4452, 4770, 5052, 5565, 5894, 6315, 6678, 7420, 7578, 8420, 8841, 9540, 11130, 11788, 12630, 13356, 14735, 15156, 16695, 17682, 18945, 22260, 22313, 25260, 26523, 29470, 33390, 35364, 37890, 44205, 44626, 53046, 58940, 66780, 66939, 75780, 88410, 89252, 106092, 111565, 132615, 133878, 156191, 176820, 200817, 223130, 265230, 267756, 312382, 334695, 401634, 446260, 468573, 530460, 624764, 669390, 780955, 803268, 937146, 1004085, 1338780, 1405719, 1561910, 1874292, 2008170, 2342865, 2811438, 3123820, 4016340, 4685730, 5622876, 7028595, 9371460, 14057190, 28114380]

約数ペア:

[(1, 28114380), (2, 14057190), (3, 9371460), (4, 7028595), (5, 5622876), (6, 4685730), (7, 4016340), (9, 3123820), (10, 2811438), (12, 2342865), (14, 2008170), (15, 1874292), (18, 1561910), (20, 1405719), (21, 1338780), (28, 1004085), (30, 937146), (35, 803268), (36, 780955), (42, 669390), (45, 624764), (53, 530460), (60, 468573), (63, 446260), (70, 401634), (84, 334695), (90, 312382), (105, 267756), (106, 265230), (126, 223130), (140, 200817), (159, 176820), (180, 156191), (210, 133878), (212, 132615), (252, 111565), (265, 106092), (315, 89252), (318, 88410), (371, 75780), (420, 66939), (421, 66780), (477, 58940), (530, 53046), (630, 44626), (636, 44205), (742, 37890), (795, 35364), (842, 33390), (954, 29470), (1060, 26523), (1113, 25260), (1260, 22313), (1263, 22260), (1484, 18945), (1590, 17682), (1684, 16695), (1855, 15156), (1908, 14735), (2105, 13356), (2226, 12630), (2385, 11788), (2526, 11130), (2947, 9540), (3180, 8841), (3339, 8420), (3710, 7578), (3789, 7420), (4210, 6678), (4452, 6315), (4770, 5894), (5052, 5565)]