18963490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{229}}^1$

素因数の和:276

約数の個数: 72

約数和(自身を含む): 43184340

約数和(自身を除く): 24220850

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 169, 182, 229, 245, 338, 455, 458, 490, 637, 845, 910, 1145, 1183, 1274, 1603, 1690, 2290, 2366, 2977, 3185, 3206, 5915, 5954, 6370, 8015, 8281, 11221, 11830, 14885, 16030, 16562, 20839, 22442, 29770, 38701, 41405, 41678, 56105, 77402, 82810, 104195, 112210, 145873, 193505, 208390, 270907, 291746, 387010, 541814, 729365, 1354535, 1458730, 1896349, 2709070, 3792698, 9481745, 18963490]

約数ペア:

[(1, 18963490), (2, 9481745), (5, 3792698), (7, 2709070), (10, 1896349), (13, 1458730), (14, 1354535), (26, 729365), (35, 541814), (49, 387010), (65, 291746), (70, 270907), (91, 208390), (98, 193505), (130, 145873), (169, 112210), (182, 104195), (229, 82810), (245, 77402), (338, 56105), (455, 41678), (458, 41405), (490, 38701), (637, 29770), (845, 22442), (910, 20839), (1145, 16562), (1183, 16030), (1274, 14885), (1603, 11830), (1690, 11221), (2290, 8281), (2366, 8015), (2977, 6370), (3185, 5954), (3206, 5915)]