19984860

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 55494180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 153, 170, 180, 189, 204, 210, 238, 252, 255, 270, 306, 311, 315, 340, 357, 378, 420, 459, 476, 510, 540, 595, 612, 622, 630, 714, 756, 765, 918, 933, 945, 1020, 1071, 1190, 1244, 1260, 1428, 1530, 1555, 1785, 1836, 1866, 1890, 2142, 2177, 2295, 2380, 2799, 3060, 3110, 3213, 3570, 3732, 3780, 4284, 4354, 4590, 4665, 5287, 5355, 5598, 6220, 6426, 6531, 7140, 8397, 8708, 9180, 9330, 10574, 10710, 10885, 11196, 12852, 13062, 13995, 15861, 16065, 16794, 18660, 19593, 21148, 21420, 21770, 26124, 26435, 27990, 31722, 32130, 32655, 33588, 37009, 39186, 41985, 43540, 47583, 52870, 55980, 58779, 63444, 64260, 65310, 74018, 78372, 79305, 83970, 95166, 97965, 105740, 111027, 117558, 130620, 142749, 148036, 158610, 167940, 185045, 190332, 195930, 222054, 235116, 237915, 285498, 293895, 317220, 333081, 370090, 391860, 444108, 475830, 555135, 570996, 587790, 666162, 713745, 740180, 951660, 999243, 1110270, 1175580, 1332324, 1427490, 1665405, 1998486, 2220540, 2854980, 3330810, 3996972, 4996215, 6661620, 9992430, 19984860]

約数ペア:

[(1, 19984860), (2, 9992430), (3, 6661620), (4, 4996215), (5, 3996972), (6, 3330810), (7, 2854980), (9, 2220540), (10, 1998486), (12, 1665405), (14, 1427490), (15, 1332324), (17, 1175580), (18, 1110270), (20, 999243), (21, 951660), (27, 740180), (28, 713745), (30, 666162), (34, 587790), (35, 570996), (36, 555135), (42, 475830), (45, 444108), (51, 391860), (54, 370090), (60, 333081), (63, 317220), (68, 293895), (70, 285498), (84, 237915), (85, 235116), (90, 222054), (102, 195930), (105, 190332), (108, 185045), (119, 167940), (126, 158610), (135, 148036), (140, 142749), (153, 130620), (170, 117558), (180, 111027), (189, 105740), (204, 97965), (210, 95166), (238, 83970), (252, 79305), (255, 78372), (270, 74018), (306, 65310), (311, 64260), (315, 63444), (340, 58779), (357, 55980), (378, 52870), (420, 47583), (459, 43540), (476, 41985), (510, 39186), (540, 37009), (595, 33588), (612, 32655), (622, 32130), (630, 31722), (714, 27990), (756, 26435), (765, 26124), (918, 21770), (933, 21420), (945, 21148), (1020, 19593), (1071, 18660), (1190, 16794), (1244, 16065), (1260, 15861), (1428, 13995), (1530, 13062), (1555, 12852), (1785, 11196), (1836, 10885), (1866, 10710), (1890, 10574), (2142, 9330), (2177, 9180), (2295, 8708), (2380, 8397), (2799, 7140), (3060, 6531), (3110, 6426), (3213, 6220), (3570, 5598), (3732, 5355), (3780, 5287), (4284, 4665), (4354, 4590)]