721620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 2315040

約数和(自身を除く): 1593420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 211, 228, 285, 342, 380, 422, 570, 633, 684, 844, 855, 1055, 1140, 1266, 1710, 1899, 2110, 2532, 3165, 3420, 3798, 4009, 4220, 6330, 7596, 8018, 9495, 12027, 12660, 16036, 18990, 20045, 24054, 36081, 37980, 40090, 48108, 60135, 72162, 80180, 120270, 144324, 180405, 240540, 360810, 721620]

約数ペア:

[(1, 721620), (2, 360810), (3, 240540), (4, 180405), (5, 144324), (6, 120270), (9, 80180), (10, 72162), (12, 60135), (15, 48108), (18, 40090), (19, 37980), (20, 36081), (30, 24054), (36, 20045), (38, 18990), (45, 16036), (57, 12660), (60, 12027), (76, 9495), (90, 8018), (95, 7596), (114, 6330), (171, 4220), (180, 4009), (190, 3798), (211, 3420), (228, 3165), (285, 2532), (342, 2110), (380, 1899), (422, 1710), (570, 1266), (633, 1140), (684, 1055), (844, 855)]