18855270

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{173}}^2$

素因数の和:366

約数の個数: 72

約数和(自身を含む): 56352816

約数和(自身を除く): 37497546

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 173, 210, 315, 346, 519, 630, 865, 1038, 1211, 1557, 1730, 2422, 2595, 3114, 3633, 5190, 6055, 7266, 7785, 10899, 12110, 15570, 18165, 21798, 29929, 36330, 54495, 59858, 89787, 108990, 149645, 179574, 209503, 269361, 299290, 419006, 448935, 538722, 628509, 897870, 1047515, 1257018, 1346805, 1885527, 2095030, 2693610, 3142545, 3771054, 6285090, 9427635, 18855270]

約数ペア:

[(1, 18855270), (2, 9427635), (3, 6285090), (5, 3771054), (6, 3142545), (7, 2693610), (9, 2095030), (10, 1885527), (14, 1346805), (15, 1257018), (18, 1047515), (21, 897870), (30, 628509), (35, 538722), (42, 448935), (45, 419006), (63, 299290), (70, 269361), (90, 209503), (105, 179574), (126, 149645), (173, 108990), (210, 89787), (315, 59858), (346, 54495), (519, 36330), (630, 29929), (865, 21798), (1038, 18165), (1211, 15570), (1557, 12110), (1730, 10899), (2422, 7785), (2595, 7266), (3114, 6055), (3633, 5190)]