161798980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1543}}^1$

素因数の和:1673

約数の個数: 72

約数和(自身を含む): 399204288

約数和(自身を除く): 237405308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 107, 140, 196, 214, 245, 428, 490, 535, 749, 980, 1070, 1498, 1543, 2140, 2996, 3086, 3745, 5243, 6172, 7490, 7715, 10486, 10801, 14980, 15430, 20972, 21602, 26215, 30860, 43204, 52430, 54005, 75607, 104860, 108010, 151214, 165101, 216020, 302428, 330202, 378035, 660404, 756070, 825505, 1155707, 1512140, 1651010, 2311414, 3302020, 4622828, 5778535, 8089949, 11557070, 16179898, 23114140, 32359796, 40449745, 80899490, 161798980]

約数ペア:

[(1, 161798980), (2, 80899490), (4, 40449745), (5, 32359796), (7, 23114140), (10, 16179898), (14, 11557070), (20, 8089949), (28, 5778535), (35, 4622828), (49, 3302020), (70, 2311414), (98, 1651010), (107, 1512140), (140, 1155707), (196, 825505), (214, 756070), (245, 660404), (428, 378035), (490, 330202), (535, 302428), (749, 216020), (980, 165101), (1070, 151214), (1498, 108010), (1543, 104860), (2140, 75607), (2996, 54005), (3086, 52430), (3745, 43204), (5243, 30860), (6172, 26215), (7490, 21602), (7715, 20972), (10486, 15430), (10801, 14980)]