18978780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 55770624

約数和(自身を除く): 36791844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 83, 103, 111, 148, 166, 185, 206, 222, 249, 309, 332, 370, 412, 415, 444, 498, 515, 555, 618, 740, 830, 996, 1030, 1110, 1236, 1245, 1545, 1660, 2060, 2220, 2490, 3071, 3090, 3811, 4980, 6142, 6180, 7622, 8549, 9213, 11433, 12284, 15244, 15355, 17098, 18426, 19055, 22866, 25647, 30710, 34196, 36852, 38110, 42745, 45732, 46065, 51294, 57165, 61420, 76220, 85490, 92130, 102588, 114330, 128235, 170980, 184260, 228660, 256470, 316313, 512940, 632626, 948939, 1265252, 1581565, 1897878, 3163130, 3795756, 4744695, 6326260, 9489390, 18978780]

約数ペア:

[(1, 18978780), (2, 9489390), (3, 6326260), (4, 4744695), (5, 3795756), (6, 3163130), (10, 1897878), (12, 1581565), (15, 1265252), (20, 948939), (30, 632626), (37, 512940), (60, 316313), (74, 256470), (83, 228660), (103, 184260), (111, 170980), (148, 128235), (166, 114330), (185, 102588), (206, 92130), (222, 85490), (249, 76220), (309, 61420), (332, 57165), (370, 51294), (412, 46065), (415, 45732), (444, 42745), (498, 38110), (515, 36852), (555, 34196), (618, 30710), (740, 25647), (830, 22866), (996, 19055), (1030, 18426), (1110, 17098), (1236, 15355), (1245, 15244), (1545, 12284), (1660, 11433), (2060, 9213), (2220, 8549), (2490, 7622), (3071, 6180), (3090, 6142), (3811, 4980)]