28519965

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^3\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 64

約数和(自身を含む): 55123200

約数和(自身を除く): 26603235

約数列:

[1, 3, 5, 9, 15, 17, 27, 43, 45, 51, 85, 129, 135, 153, 215, 255, 289, 387, 459, 645, 731, 765, 867, 1161, 1445, 1935, 2193, 2295, 2601, 3655, 4335, 4913, 5805, 6579, 7803, 10965, 12427, 13005, 14739, 19737, 24565, 32895, 37281, 39015, 44217, 62135, 73695, 98685, 111843, 132651, 186405, 211259, 221085, 335529, 559215, 633777, 663255, 1056295, 1677645, 1901331, 3168885, 5703993, 9506655, 28519965]

約数ペア:

[(1, 28519965), (3, 9506655), (5, 5703993), (9, 3168885), (15, 1901331), (17, 1677645), (27, 1056295), (43, 663255), (45, 633777), (51, 559215), (85, 335529), (129, 221085), (135, 211259), (153, 186405), (215, 132651), (255, 111843), (289, 98685), (387, 73695), (459, 62135), (645, 44217), (731, 39015), (765, 37281), (867, 32895), (1161, 24565), (1445, 19737), (1935, 14739), (2193, 13005), (2295, 12427), (2601, 10965), (3655, 7803), (4335, 6579), (4913, 5805)]