21438840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9403}}^1$

素因数の和:9436

約数の個数: 64

約数和(自身を含む): 67708800

約数和(自身を除く): 46269960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9403, 18806, 28209, 37612, 47015, 56418, 75224, 94030, 112836, 141045, 178657, 188060, 225672, 282090, 357314, 376120, 535971, 564180, 714628, 893285, 1071942, 1128360, 1429256, 1786570, 2143884, 2679855, 3573140, 4287768, 5359710, 7146280, 10719420, 21438840]

約数ペア:

[(1, 21438840), (2, 10719420), (3, 7146280), (4, 5359710), (5, 4287768), (6, 3573140), (8, 2679855), (10, 2143884), (12, 1786570), (15, 1429256), (19, 1128360), (20, 1071942), (24, 893285), (30, 714628), (38, 564180), (40, 535971), (57, 376120), (60, 357314), (76, 282090), (95, 225672), (114, 188060), (120, 178657), (152, 141045), (190, 112836), (228, 94030), (285, 75224), (380, 56418), (456, 47015), (570, 37612), (760, 28209), (1140, 18806), (2280, 9403)]