21445560

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6619}}^1$

素因数の和:6642

約数の個数: 80

約数和(自身を含む): 72091800

約数和(自身を除く): 50646240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6619, 13238, 19857, 26476, 33095, 39714, 52952, 59571, 66190, 79428, 99285, 119142, 132380, 158856, 178713, 198570, 238284, 264760, 297855, 357426, 397140, 476568, 536139, 595710, 714852, 794280, 893565, 1072278, 1191420, 1429704, 1787130, 2144556, 2382840, 2680695, 3574260, 4289112, 5361390, 7148520, 10722780, 21445560]

約数ペア:

[(1, 21445560), (2, 10722780), (3, 7148520), (4, 5361390), (5, 4289112), (6, 3574260), (8, 2680695), (9, 2382840), (10, 2144556), (12, 1787130), (15, 1429704), (18, 1191420), (20, 1072278), (24, 893565), (27, 794280), (30, 714852), (36, 595710), (40, 536139), (45, 476568), (54, 397140), (60, 357426), (72, 297855), (81, 264760), (90, 238284), (108, 198570), (120, 178713), (135, 158856), (162, 132380), (180, 119142), (216, 99285), (270, 79428), (324, 66190), (360, 59571), (405, 52952), (540, 39714), (648, 33095), (810, 26476), (1080, 19857), (1620, 13238), (3240, 6619)]