20873970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 63302400

約数和(自身を除く): 42428430

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 90, 95, 114, 117, 130, 135, 171, 190, 195, 234, 247, 270, 285, 313, 342, 351, 390, 494, 513, 570, 585, 626, 702, 741, 855, 939, 1026, 1170, 1235, 1482, 1565, 1710, 1755, 1878, 2223, 2470, 2565, 2817, 3130, 3510, 3705, 4069, 4446, 4695, 5130, 5634, 5947, 6669, 7410, 8138, 8451, 9390, 11115, 11894, 12207, 13338, 14085, 16902, 17841, 20345, 22230, 24414, 28170, 29735, 33345, 35682, 36621, 40690, 42255, 53523, 59470, 61035, 66690, 73242, 77311, 84510, 89205, 107046, 109863, 122070, 154622, 160569, 178410, 183105, 219726, 231933, 267615, 321138, 366210, 386555, 463866, 535230, 549315, 695799, 773110, 802845, 1098630, 1159665, 1391598, 1605690, 2087397, 2319330, 3478995, 4174794, 6957990, 10436985, 20873970]

約数ペア:

[(1, 20873970), (2, 10436985), (3, 6957990), (5, 4174794), (6, 3478995), (9, 2319330), (10, 2087397), (13, 1605690), (15, 1391598), (18, 1159665), (19, 1098630), (26, 802845), (27, 773110), (30, 695799), (38, 549315), (39, 535230), (45, 463866), (54, 386555), (57, 366210), (65, 321138), (78, 267615), (90, 231933), (95, 219726), (114, 183105), (117, 178410), (130, 160569), (135, 154622), (171, 122070), (190, 109863), (195, 107046), (234, 89205), (247, 84510), (270, 77311), (285, 73242), (313, 66690), (342, 61035), (351, 59470), (390, 53523), (494, 42255), (513, 40690), (570, 36621), (585, 35682), (626, 33345), (702, 29735), (741, 28170), (855, 24414), (939, 22230), (1026, 20345), (1170, 17841), (1235, 16902), (1482, 14085), (1565, 13338), (1710, 12207), (1755, 11894), (1878, 11115), (2223, 9390), (2470, 8451), (2565, 8138), (2817, 7410), (3130, 6669), (3510, 5947), (3705, 5634), (4069, 5130), (4446, 4695)]