28259880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 128

約数和(自身を含む): 94003200

約数和(自身を除く): 65743320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 79, 88, 110, 120, 132, 158, 165, 220, 237, 264, 271, 316, 330, 395, 440, 474, 542, 632, 660, 790, 813, 869, 948, 1084, 1185, 1320, 1355, 1580, 1626, 1738, 1896, 2168, 2370, 2607, 2710, 2981, 3160, 3252, 3476, 4065, 4345, 4740, 5214, 5420, 5962, 6504, 6952, 8130, 8690, 8943, 9480, 10428, 10840, 11924, 13035, 14905, 16260, 17380, 17886, 20856, 21409, 23848, 26070, 29810, 32520, 34760, 35772, 42818, 44715, 52140, 59620, 64227, 71544, 85636, 89430, 104280, 107045, 119240, 128454, 171272, 178860, 214090, 235499, 256908, 321135, 357720, 428180, 470998, 513816, 642270, 706497, 856360, 941996, 1177495, 1284540, 1412994, 1883992, 2354990, 2569080, 2825988, 3532485, 4709980, 5651976, 7064970, 9419960, 14129940, 28259880]

約数ペア:

[(1, 28259880), (2, 14129940), (3, 9419960), (4, 7064970), (5, 5651976), (6, 4709980), (8, 3532485), (10, 2825988), (11, 2569080), (12, 2354990), (15, 1883992), (20, 1412994), (22, 1284540), (24, 1177495), (30, 941996), (33, 856360), (40, 706497), (44, 642270), (55, 513816), (60, 470998), (66, 428180), (79, 357720), (88, 321135), (110, 256908), (120, 235499), (132, 214090), (158, 178860), (165, 171272), (220, 128454), (237, 119240), (264, 107045), (271, 104280), (316, 89430), (330, 85636), (395, 71544), (440, 64227), (474, 59620), (542, 52140), (632, 44715), (660, 42818), (790, 35772), (813, 34760), (869, 32520), (948, 29810), (1084, 26070), (1185, 23848), (1320, 21409), (1355, 20856), (1580, 17886), (1626, 17380), (1738, 16260), (1896, 14905), (2168, 13035), (2370, 11924), (2607, 10840), (2710, 10428), (2981, 9480), (3160, 8943), (3252, 8690), (3476, 8130), (4065, 6952), (4345, 6504), (4740, 5962), (5214, 5420)]