15921290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:108

約数の個数: 128

約数和(自身を含む): 39813120

約数和(自身を除く): 23891830

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 29, 31, 35, 46, 55, 58, 62, 70, 77, 110, 115, 145, 154, 155, 161, 203, 217, 230, 253, 290, 310, 319, 322, 341, 385, 406, 434, 506, 638, 667, 682, 713, 770, 805, 899, 1015, 1085, 1265, 1334, 1426, 1595, 1610, 1705, 1771, 1798, 2030, 2170, 2233, 2387, 2530, 3190, 3335, 3410, 3542, 3565, 4466, 4495, 4669, 4774, 4991, 6293, 6670, 7130, 7337, 7843, 8855, 8990, 9338, 9889, 9982, 11165, 11935, 12586, 14674, 15686, 17710, 19778, 20677, 22330, 23345, 23870, 24955, 31465, 36685, 39215, 41354, 46690, 49445, 49910, 51359, 54901, 62930, 69223, 73370, 78430, 98890, 102718, 103385, 109802, 138446, 144739, 206770, 227447, 256795, 274505, 289478, 346115, 454894, 513590, 549010, 692230, 723695, 1137235, 1447390, 1592129, 2274470, 3184258, 7960645, 15921290]

約数ペア:

[(1, 15921290), (2, 7960645), (5, 3184258), (7, 2274470), (10, 1592129), (11, 1447390), (14, 1137235), (22, 723695), (23, 692230), (29, 549010), (31, 513590), (35, 454894), (46, 346115), (55, 289478), (58, 274505), (62, 256795), (70, 227447), (77, 206770), (110, 144739), (115, 138446), (145, 109802), (154, 103385), (155, 102718), (161, 98890), (203, 78430), (217, 73370), (230, 69223), (253, 62930), (290, 54901), (310, 51359), (319, 49910), (322, 49445), (341, 46690), (385, 41354), (406, 39215), (434, 36685), (506, 31465), (638, 24955), (667, 23870), (682, 23345), (713, 22330), (770, 20677), (805, 19778), (899, 17710), (1015, 15686), (1085, 14674), (1265, 12586), (1334, 11935), (1426, 11165), (1595, 9982), (1610, 9889), (1705, 9338), (1771, 8990), (1798, 8855), (2030, 7843), (2170, 7337), (2233, 7130), (2387, 6670), (2530, 6293), (3190, 4991), (3335, 4774), (3410, 4669), (3542, 4495), (3565, 4466)]