21445680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4703}}^1$

素因数の和:4738

約数の個数: 80

約数和(自身を含む): 69995520

約数和(自身を除く): 48549840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4703, 9406, 14109, 18812, 23515, 28218, 37624, 47030, 56436, 70545, 75248, 89357, 94060, 112872, 141090, 178714, 188120, 225744, 268071, 282180, 357428, 376240, 446785, 536142, 564360, 714856, 893570, 1072284, 1128720, 1340355, 1429712, 1787140, 2144568, 2680710, 3574280, 4289136, 5361420, 7148560, 10722840, 21445680]

約数ペア:

[(1, 21445680), (2, 10722840), (3, 7148560), (4, 5361420), (5, 4289136), (6, 3574280), (8, 2680710), (10, 2144568), (12, 1787140), (15, 1429712), (16, 1340355), (19, 1128720), (20, 1072284), (24, 893570), (30, 714856), (38, 564360), (40, 536142), (48, 446785), (57, 376240), (60, 357428), (76, 282180), (80, 268071), (95, 225744), (114, 188120), (120, 178714), (152, 141090), (190, 112872), (228, 94060), (240, 89357), (285, 75248), (304, 70545), (380, 56436), (456, 47030), (570, 37624), (760, 28218), (912, 23515), (1140, 18812), (1520, 14109), (2280, 9406), (4560, 4703)]