28498860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:688

約数の個数: 144

約数和(自身を含む): 98148960

約数和(自身を除く): 69650100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 641, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1282, 1482, 1710, 1923, 2223, 2340, 2470, 2564, 2964, 3205, 3420, 3705, 3846, 4446, 4940, 5769, 6410, 7410, 7692, 8333, 8892, 9615, 11115, 11538, 12179, 12820, 14820, 16666, 19230, 22230, 23076, 24358, 24999, 28845, 33332, 36537, 38460, 41665, 44460, 48716, 49998, 57690, 60895, 73074, 74997, 83330, 99996, 109611, 115380, 121790, 124995, 146148, 149994, 158327, 166660, 182685, 219222, 243580, 249990, 299988, 316654, 365370, 374985, 438444, 474981, 499980, 548055, 633308, 730740, 749970, 791635, 949962, 1096110, 1424943, 1499940, 1583270, 1899924, 2192220, 2374905, 2849886, 3166540, 4749810, 5699772, 7124715, 9499620, 14249430, 28498860]

約数ペア:

[(1, 28498860), (2, 14249430), (3, 9499620), (4, 7124715), (5, 5699772), (6, 4749810), (9, 3166540), (10, 2849886), (12, 2374905), (13, 2192220), (15, 1899924), (18, 1583270), (19, 1499940), (20, 1424943), (26, 1096110), (30, 949962), (36, 791635), (38, 749970), (39, 730740), (45, 633308), (52, 548055), (57, 499980), (60, 474981), (65, 438444), (76, 374985), (78, 365370), (90, 316654), (95, 299988), (114, 249990), (117, 243580), (130, 219222), (156, 182685), (171, 166660), (180, 158327), (190, 149994), (195, 146148), (228, 124995), (234, 121790), (247, 115380), (260, 109611), (285, 99996), (342, 83330), (380, 74997), (390, 73074), (468, 60895), (494, 57690), (570, 49998), (585, 48716), (641, 44460), (684, 41665), (741, 38460), (780, 36537), (855, 33332), (988, 28845), (1140, 24999), (1170, 24358), (1235, 23076), (1282, 22230), (1482, 19230), (1710, 16666), (1923, 14820), (2223, 12820), (2340, 12179), (2470, 11538), (2564, 11115), (2964, 9615), (3205, 8892), (3420, 8333), (3705, 7692), (3846, 7410), (4446, 6410), (4940, 5769)]