2820797420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{641}}^1$

素因数の和:760

約数の個数: 144

約数和(自身を含む): 7350170688

約数和(自身を除く): 4529373268

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 43, 68, 70, 85, 86, 119, 140, 170, 172, 215, 238, 301, 340, 430, 476, 595, 602, 641, 731, 860, 1190, 1204, 1282, 1462, 1505, 1849, 2380, 2564, 2924, 3010, 3205, 3655, 3698, 4487, 5117, 6020, 6410, 7310, 7396, 8974, 9245, 10234, 10897, 12820, 12943, 14620, 17948, 18490, 20468, 21794, 22435, 25585, 25886, 27563, 31433, 36980, 43588, 44870, 51170, 51772, 54485, 55126, 62866, 64715, 76279, 89740, 102340, 108970, 110252, 125732, 129430, 137815, 152558, 157165, 192941, 217940, 220031, 258860, 275630, 305116, 314330, 381395, 385882, 440062, 468571, 551260, 628660, 762790, 771764, 880124, 937142, 964705, 1100155, 1185209, 1525580, 1874284, 1929410, 2200310, 2342855, 2370418, 3279997, 3858820, 4400620, 4685710, 4740836, 5926045, 6559994, 8296463, 9371420, 11852090, 13119988, 16399985, 16592926, 20148553, 23704180, 32799970, 33185852, 40297106, 41482315, 65599940, 80594212, 82964630, 100742765, 141039871, 165929260, 201485530, 282079742, 402971060, 564159484, 705199355, 1410398710, 2820797420]

約数ペア:

[(1, 2820797420), (2, 1410398710), (4, 705199355), (5, 564159484), (7, 402971060), (10, 282079742), (14, 201485530), (17, 165929260), (20, 141039871), (28, 100742765), (34, 82964630), (35, 80594212), (43, 65599940), (68, 41482315), (70, 40297106), (85, 33185852), (86, 32799970), (119, 23704180), (140, 20148553), (170, 16592926), (172, 16399985), (215, 13119988), (238, 11852090), (301, 9371420), (340, 8296463), (430, 6559994), (476, 5926045), (595, 4740836), (602, 4685710), (641, 4400620), (731, 3858820), (860, 3279997), (1190, 2370418), (1204, 2342855), (1282, 2200310), (1462, 1929410), (1505, 1874284), (1849, 1525580), (2380, 1185209), (2564, 1100155), (2924, 964705), (3010, 937142), (3205, 880124), (3655, 771764), (3698, 762790), (4487, 628660), (5117, 551260), (6020, 468571), (6410, 440062), (7310, 385882), (7396, 381395), (8974, 314330), (9245, 305116), (10234, 275630), (10897, 258860), (12820, 220031), (12943, 217940), (14620, 192941), (17948, 157165), (18490, 152558), (20468, 137815), (21794, 129430), (22435, 125732), (25585, 110252), (25886, 108970), (27563, 102340), (31433, 89740), (36980, 76279), (43588, 64715), (44870, 62866), (51170, 55126), (51772, 54485)]