19893420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 64733760

約数和(自身を除く): 44840340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 37, 45, 58, 60, 74, 87, 90, 103, 111, 116, 145, 148, 174, 180, 185, 206, 222, 261, 290, 309, 333, 348, 370, 412, 435, 444, 515, 522, 555, 580, 618, 666, 740, 870, 927, 1030, 1044, 1073, 1110, 1236, 1305, 1332, 1545, 1665, 1740, 1854, 2060, 2146, 2220, 2610, 2987, 3090, 3219, 3330, 3708, 3811, 4292, 4635, 5220, 5365, 5974, 6180, 6438, 6660, 7622, 8961, 9270, 9657, 10730, 11433, 11948, 12876, 14935, 15244, 16095, 17922, 18540, 19055, 19314, 21460, 22866, 26883, 29870, 32190, 34299, 35844, 38110, 38628, 44805, 45732, 48285, 53766, 57165, 59740, 64380, 68598, 76220, 89610, 96570, 107532, 110519, 114330, 134415, 137196, 171495, 179220, 193140, 221038, 228660, 268830, 331557, 342990, 442076, 537660, 552595, 663114, 685980, 994671, 1105190, 1326228, 1657785, 1989342, 2210380, 3315570, 3978684, 4973355, 6631140, 9946710, 19893420]

約数ペア:

[(1, 19893420), (2, 9946710), (3, 6631140), (4, 4973355), (5, 3978684), (6, 3315570), (9, 2210380), (10, 1989342), (12, 1657785), (15, 1326228), (18, 1105190), (20, 994671), (29, 685980), (30, 663114), (36, 552595), (37, 537660), (45, 442076), (58, 342990), (60, 331557), (74, 268830), (87, 228660), (90, 221038), (103, 193140), (111, 179220), (116, 171495), (145, 137196), (148, 134415), (174, 114330), (180, 110519), (185, 107532), (206, 96570), (222, 89610), (261, 76220), (290, 68598), (309, 64380), (333, 59740), (348, 57165), (370, 53766), (412, 48285), (435, 45732), (444, 44805), (515, 38628), (522, 38110), (555, 35844), (580, 34299), (618, 32190), (666, 29870), (740, 26883), (870, 22866), (927, 21460), (1030, 19314), (1044, 19055), (1073, 18540), (1110, 17922), (1236, 16095), (1305, 15244), (1332, 14935), (1545, 12876), (1665, 11948), (1740, 11433), (1854, 10730), (2060, 9657), (2146, 9270), (2220, 8961), (2610, 7622), (2987, 6660), (3090, 6438), (3219, 6180), (3330, 5974), (3708, 5365), (3811, 5220), (4292, 4635)]