55657980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 194847744

約数和(自身を除く): 139189764

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 163, 180, 210, 252, 271, 315, 326, 420, 489, 542, 630, 652, 813, 815, 978, 1084, 1141, 1260, 1355, 1467, 1626, 1630, 1897, 1956, 2282, 2439, 2445, 2710, 2934, 3252, 3260, 3423, 3794, 4065, 4564, 4878, 4890, 5420, 5691, 5705, 5868, 6846, 7335, 7588, 8130, 9485, 9756, 9780, 10269, 11382, 11410, 12195, 13692, 14670, 16260, 17073, 17115, 18970, 20538, 22764, 22820, 24390, 28455, 29340, 34146, 34230, 37940, 41076, 44173, 48780, 51345, 56910, 68292, 68460, 85365, 88346, 102690, 113820, 132519, 170730, 176692, 205380, 220865, 265038, 309211, 341460, 397557, 441730, 530076, 618422, 662595, 795114, 883460, 927633, 1236844, 1325190, 1546055, 1590228, 1855266, 1987785, 2650380, 2782899, 3092110, 3710532, 3975570, 4638165, 5565798, 6184220, 7951140, 9276330, 11131596, 13914495, 18552660, 27828990, 55657980]

約数ペア:

[(1, 55657980), (2, 27828990), (3, 18552660), (4, 13914495), (5, 11131596), (6, 9276330), (7, 7951140), (9, 6184220), (10, 5565798), (12, 4638165), (14, 3975570), (15, 3710532), (18, 3092110), (20, 2782899), (21, 2650380), (28, 1987785), (30, 1855266), (35, 1590228), (36, 1546055), (42, 1325190), (45, 1236844), (60, 927633), (63, 883460), (70, 795114), (84, 662595), (90, 618422), (105, 530076), (126, 441730), (140, 397557), (163, 341460), (180, 309211), (210, 265038), (252, 220865), (271, 205380), (315, 176692), (326, 170730), (420, 132519), (489, 113820), (542, 102690), (630, 88346), (652, 85365), (813, 68460), (815, 68292), (978, 56910), (1084, 51345), (1141, 48780), (1260, 44173), (1355, 41076), (1467, 37940), (1626, 34230), (1630, 34146), (1897, 29340), (1956, 28455), (2282, 24390), (2439, 22820), (2445, 22764), (2710, 20538), (2934, 18970), (3252, 17115), (3260, 17073), (3423, 16260), (3794, 14670), (4065, 13692), (4564, 12195), (4878, 11410), (4890, 11382), (5420, 10269), (5691, 9780), (5705, 9756), (5868, 9485), (6846, 8130), (7335, 7588)]