18784125945

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{18701}}^1$

素因数の和:18843

約数の個数: 96

約数和(自身を含む): 37495864224

約数和(自身を除く): 18711738279

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 101, 117, 153, 195, 221, 255, 303, 505, 585, 663, 765, 909, 1105, 1313, 1515, 1717, 1989, 3315, 3939, 4545, 5151, 6565, 8585, 9945, 11817, 15453, 18701, 19695, 22321, 25755, 56103, 59085, 66963, 77265, 93505, 111605, 168309, 200889, 243113, 280515, 317917, 334815, 729339, 841545, 953751, 1004445, 1215565, 1589585, 1888801, 2188017, 2861253, 3646695, 4132921, 4768755, 5666403, 9444005, 10940085, 12398763, 14306265, 16999209, 20664605, 24554413, 28332015, 32109617, 37196289, 61993815, 73663239, 84996045, 96328851, 122772065, 160548085, 185981445, 220989717, 288986553, 368316195, 417425021, 481644255, 1104948585, 1252275063, 1444932765, 2087125105, 3756825189, 6261375315, 18784125945]

約数ペア:

[(1, 18784125945), (3, 6261375315), (5, 3756825189), (9, 2087125105), (13, 1444932765), (15, 1252275063), (17, 1104948585), (39, 481644255), (45, 417425021), (51, 368316195), (65, 288986553), (85, 220989717), (101, 185981445), (117, 160548085), (153, 122772065), (195, 96328851), (221, 84996045), (255, 73663239), (303, 61993815), (505, 37196289), (585, 32109617), (663, 28332015), (765, 24554413), (909, 20664605), (1105, 16999209), (1313, 14306265), (1515, 12398763), (1717, 10940085), (1989, 9444005), (3315, 5666403), (3939, 4768755), (4545, 4132921), (5151, 3646695), (6565, 2861253), (8585, 2188017), (9945, 1888801), (11817, 1589585), (15453, 1215565), (18701, 1004445), (19695, 953751), (22321, 841545), (25755, 729339), (56103, 334815), (59085, 317917), (66963, 280515), (77265, 243113), (93505, 200889), (111605, 168309)]