19982880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13877}}^1$

素因数の和:13898

約数の個数: 72

約数和(自身を含む): 68196492

約数和(自身を除く): 48213612

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13877, 27754, 41631, 55508, 69385, 83262, 111016, 124893, 138770, 166524, 208155, 222032, 249786, 277540, 333048, 416310, 444064, 499572, 555080, 624465, 666096, 832620, 999144, 1110160, 1248930, 1332192, 1665240, 1998288, 2220320, 2497860, 3330480, 3996576, 4995720, 6660960, 9991440, 19982880]

約数ペア:

[(1, 19982880), (2, 9991440), (3, 6660960), (4, 4995720), (5, 3996576), (6, 3330480), (8, 2497860), (9, 2220320), (10, 1998288), (12, 1665240), (15, 1332192), (16, 1248930), (18, 1110160), (20, 999144), (24, 832620), (30, 666096), (32, 624465), (36, 555080), (40, 499572), (45, 444064), (48, 416310), (60, 333048), (72, 277540), (80, 249786), (90, 222032), (96, 208155), (120, 166524), (144, 138770), (160, 124893), (180, 111016), (240, 83262), (288, 69385), (360, 55508), (480, 41631), (720, 27754), (1440, 13877)]