20454070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1$

素因数の和:79

約数の個数: 96

約数和(自身を含む): 48837600

約数和(自身を除く): 28383530

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 49, 65, 70, 91, 95, 98, 130, 133, 169, 182, 190, 245, 247, 266, 338, 455, 490, 494, 637, 665, 845, 910, 931, 1183, 1235, 1274, 1330, 1690, 1729, 1862, 2197, 2366, 2470, 3185, 3211, 3458, 4394, 4655, 5915, 6370, 6422, 8281, 8645, 9310, 10985, 11830, 12103, 15379, 16055, 16562, 17290, 21970, 22477, 24206, 30758, 32110, 41405, 41743, 44954, 60515, 76895, 82810, 83486, 107653, 112385, 121030, 153790, 157339, 208715, 215306, 224770, 292201, 314678, 417430, 538265, 584402, 786695, 1076530, 1461005, 1573390, 2045407, 2922010, 4090814, 10227035, 20454070]

約数ペア:

[(1, 20454070), (2, 10227035), (5, 4090814), (7, 2922010), (10, 2045407), (13, 1573390), (14, 1461005), (19, 1076530), (26, 786695), (35, 584402), (38, 538265), (49, 417430), (65, 314678), (70, 292201), (91, 224770), (95, 215306), (98, 208715), (130, 157339), (133, 153790), (169, 121030), (182, 112385), (190, 107653), (245, 83486), (247, 82810), (266, 76895), (338, 60515), (455, 44954), (490, 41743), (494, 41405), (637, 32110), (665, 30758), (845, 24206), (910, 22477), (931, 21970), (1183, 17290), (1235, 16562), (1274, 16055), (1330, 15379), (1690, 12103), (1729, 11830), (1862, 10985), (2197, 9310), (2366, 8645), (2470, 8281), (3185, 6422), (3211, 6370), (3458, 5915), (4394, 4655)]