28047420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 91728000

約数和(自身を除く): 63680580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 59, 60, 76, 90, 95, 114, 118, 139, 171, 177, 180, 190, 228, 236, 278, 285, 295, 342, 354, 380, 417, 531, 556, 570, 590, 684, 695, 708, 834, 855, 885, 1062, 1121, 1140, 1180, 1251, 1390, 1668, 1710, 1770, 2085, 2124, 2242, 2502, 2641, 2655, 2780, 3363, 3420, 3540, 4170, 4484, 5004, 5282, 5310, 5605, 6255, 6726, 7923, 8201, 8340, 10089, 10564, 10620, 11210, 12510, 13205, 13452, 15846, 16402, 16815, 20178, 22420, 23769, 24603, 25020, 26410, 31692, 32804, 33630, 39615, 40356, 41005, 47538, 49206, 50445, 52820, 67260, 73809, 79230, 82010, 95076, 98412, 100890, 118845, 123015, 147618, 155819, 158460, 164020, 201780, 237690, 246030, 295236, 311638, 369045, 467457, 475380, 492060, 623276, 738090, 779095, 934914, 1402371, 1476180, 1558190, 1869828, 2337285, 2804742, 3116380, 4674570, 5609484, 7011855, 9349140, 14023710, 28047420]

約数ペア:

[(1, 28047420), (2, 14023710), (3, 9349140), (4, 7011855), (5, 5609484), (6, 4674570), (9, 3116380), (10, 2804742), (12, 2337285), (15, 1869828), (18, 1558190), (19, 1476180), (20, 1402371), (30, 934914), (36, 779095), (38, 738090), (45, 623276), (57, 492060), (59, 475380), (60, 467457), (76, 369045), (90, 311638), (95, 295236), (114, 246030), (118, 237690), (139, 201780), (171, 164020), (177, 158460), (180, 155819), (190, 147618), (228, 123015), (236, 118845), (278, 100890), (285, 98412), (295, 95076), (342, 82010), (354, 79230), (380, 73809), (417, 67260), (531, 52820), (556, 50445), (570, 49206), (590, 47538), (684, 41005), (695, 40356), (708, 39615), (834, 33630), (855, 32804), (885, 31692), (1062, 26410), (1121, 25020), (1140, 24603), (1180, 23769), (1251, 22420), (1390, 20178), (1668, 16815), (1710, 16402), (1770, 15846), (2085, 13452), (2124, 13205), (2242, 12510), (2502, 11210), (2641, 10620), (2655, 10564), (2780, 10089), (3363, 8340), (3420, 8201), (3540, 7923), (4170, 6726), (4484, 6255), (5004, 5605), (5282, 5310)]