20409601396

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1225

約数の個数: 96

約数和(自身を含む): 39687459840

約数和(自身を除く): 19277858444

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 83, 89, 164, 166, 178, 332, 356, 697, 991, 1394, 1411, 1513, 1982, 2788, 2822, 3026, 3403, 3649, 3964, 5644, 6052, 6806, 7298, 7387, 13612, 14596, 14774, 16847, 29548, 33694, 40631, 57851, 62033, 67388, 81262, 82253, 88199, 115702, 124066, 125579, 162524, 164506, 176398, 231404, 248132, 251158, 302867, 329012, 352796, 502316, 605734, 690727, 1211468, 1381454, 1398301, 1499383, 2762908, 2796602, 2998766, 3372373, 3616159, 5148739, 5593204, 5997532, 6744746, 7232318, 7320517, 10297478, 13489492, 14464636, 14641034, 20594956, 29282068, 57330341, 61474703, 114660682, 122949406, 124448789, 229321364, 245898812, 248897578, 300141197, 497795156, 600282394, 1200564788, 5102400349, 10204800698, 20409601396]

約数ペア:

[(1, 20409601396), (2, 10204800698), (4, 5102400349), (17, 1200564788), (34, 600282394), (41, 497795156), (68, 300141197), (82, 248897578), (83, 245898812), (89, 229321364), (164, 124448789), (166, 122949406), (178, 114660682), (332, 61474703), (356, 57330341), (697, 29282068), (991, 20594956), (1394, 14641034), (1411, 14464636), (1513, 13489492), (1982, 10297478), (2788, 7320517), (2822, 7232318), (3026, 6744746), (3403, 5997532), (3649, 5593204), (3964, 5148739), (5644, 3616159), (6052, 3372373), (6806, 2998766), (7298, 2796602), (7387, 2762908), (13612, 1499383), (14596, 1398301), (14774, 1381454), (16847, 1211468), (29548, 690727), (33694, 605734), (40631, 502316), (57851, 352796), (62033, 329012), (67388, 302867), (81262, 251158), (82253, 248132), (88199, 231404), (115702, 176398), (124066, 164506), (125579, 162524)]